Sorry, The previous log about `vim neard.spec' between neard and lib32-neard should be exchange.

1, while build lib32-neard, vim neard.spec
...
Name: neard
Release: r1.2
Version: 0.9+git0+7abdb13d106d496e1115fab49e6448a249dfb3c8
%package -n neard-dbg
Suggests: neard = 0.9-gitAUTOINC+7abdb13d106d496e1115fab49e6448a249dfb3c8-r1
%package -n neard-staticdev
Requires: neard-dev = 0.9-gitAUTOINC+7abdb13d106d496e1115fab49e6448a249dfb3c8-r1
%package -n neard-dev
Requires: neard = 0.9-gitAUTOINC+7abdb13d106d496e1115fab49e6448a249dfb3c8-r1
...

2, while build neard, vim neard.spec
...
Name: neard
Release: r1.2
Version: 0.9+git0+7abdb13d106d496e1115fab49e6448a249dfb3c8
%package -n neard-dbg
Requires: neard-dev = 0.9+git0+7abdb13d106d496e1115fab49e6448a249dfb3c8-r1.2
%package -n neard-staticdev
Requires: neard-dev = 0.9+git0+7abdb13d106d496e1115fab49e6448a249dfb3c8-r1.2
%package -n neard-dev
Requires: neard = 0.9+git0+7abdb13d106d496e1115fab49e6448a249dfb3c8-r1.2
...
While build lib32-neard, why `0.9-gitAUTOINC'? Why not `0.9+git0'?
Why `r1'? Why not `r1.2'

master 1ceb13dda11645229053fc4840954333f8910ba4

There is another defect when build neard:
error log
...
DEBUG: Executing shell function BUILDSPEC
error: line 148: Illegal char '-' in EVR: Suggests: neard = 0.9-git0+1e20e396cb837017b7e5ef822bfdab6ce060d2cf-r1
error: Package has no %description: neard-dbg.x86_64
...


*analysis
Translate the "-" in the version to a "+" by loading the PKGV rather than PV.

*solution
--- a/meta/classes/package_rpm.bbclass
+++ b/meta/classes/package_rpm.bbclass
@@ -607,10 +607,9 @@ python write_specfile () {
                     if '-' in ver:
                         subd = oe.packagedata.read_subpkgdata_dict(dep, d)
                         if 'PKGV' in subd:
-                            pv = subd['PV']
                             pkgv = subd['PKGV']
                             reppv = pkgv.replace('-', '+')
-                            verlist.append(ver.replace(pv, reppv))
+                            verlist.append(ver.replace(pkgv, reppv))
                     else:
                         verlist.append(ver)
                 newdeps_dict[dep] = verlist

> diff --git a/meta/classes/package.bbclass b/meta/classes/package.bbclass
> index 1625ebd..b534598 100644
> --- a/meta/classes/package.bbclass
> +++ b/meta/classes/package.bbclass
> @@ -364,6 +364,25 @@ python package_get_auto_pr() {
>          pkgv = d.getVar("PKGV", True)
>          if 'AUTOINC' in pkgv:
>              d.setVar("PKGV", pkgv.replace("AUTOINC", "0"))
> +
> +    multilibs = d.getVar('MULTILIBS', True)
> +    if multilibs:
> +        extendpkgv = d.getVar("EXTENDPKGV", True)
> +        # RDEPENDS_${PN}-dev = "${PN} (= ${EXTENDPKGV})"
> +        pkgdev_rdep_cur = "%s (= %s)" % (pn, extendpkgv)
> +        if d.getVar("RDEPENDS_%s-dev" % pn, True) != pkgdev_rdep_cur:
> +            d.setVar("RDEPENDS_%s-dev" % pn, pkgdev_rdep_cur)
> +
> +        # RDEPENDS_${PN}-staticdev = "${PN}-dev (= ${EXTENDPKGV})"
> +        pkgstaticdev_rdep_cur = "%s-dev (= %s)" % (pn, extendpkgv)
> +        if d.getVar("RDEPENDS_%s-staticdev" % pn, True) !=
> pkgstaticdev_rdep_cur:
> +            d.setVar("RDEPENDS_%s-staticdev" % pn, pkgstaticdev_rdep_cur)
> +
> +        # RRECOMMENDS_${PN}-dbg = "${PN} (= ${EXTENDPKGV})"
> +        pkgdbg_rrec_cur = "%s (= %s)" % (pn, extendpkgv)
> +        if d.getVar("RRECOMMENDS_%s-dbg" % pn, True) != pkgdbg_rrec_cur:
> +            d.setVar("RRECOMMENDS_%s-dbg" % pn, pkgdbg_rrec_cur)
> +
>  }

The solution is wrong, the definition of RDEPENDS_${PN}-dev, RDEPENDS_${PN}-staticdev and RRECOMMENDS_${PN}-dbg may be changed by recipe. Such as RRECOMMENDS_${PN}-dbg has been changed in meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc. The previous will change them to default.

Here is another solution, if EXTENDPKGV is changed and the previous three variables have no change, repalce them with new EXTENDPKGV.

diff --git a/meta/classes/package.bbclass b/meta/classes/package.bbclass
index f3a6bc7..5655f48 100644
--- a/meta/classes/package.bbclass
+++ b/meta/classes/package.bbclass
@@ -347,6 +347,16 @@ python package_get_auto_pr() {
     if not (host is None):
         d.setVar("PRSERV_HOST", host)
 
+    # Back up RDEPENDS_${PN}-dev, RDEPENDS_${PN}-staticdev,
+    # RRECOMMENDS_${PN}-dbg, EXTENDPKGV before set PRAUTO and PKGV
+    pkgdev_rdep = "RDEPENDS_%s-dev" % pn
+    pkgstaticdev_rdep = "RDEPENDS_%s-staticdev" % pn
+    pkgdbg_rrec = "RRECOMMENDS_%s-dbg" % pn
+    pkgdev_rdep_value = d.getVar(pkgdev_rdep, True)
+    pkgstaticdev_rdep_value = d.getVar(pkgstaticdev_rdep, True)
+    pkgdbg_rrec_value = d.getVar(pkgdbg_rrec, True)
+    extendpkgv_old = d.getVar("EXTENDPKGV", True)
+
     if d.getVar('PRSERV_HOST', True):
         try:
             auto_pr=prserv_get_pr_auto(d)
@@ -364,6 +374,23 @@ python package_get_auto_pr() {
         pkgv = d.getVar("PKGV", True)
         if 'AUTOINC' in pkgv:
             d.setVar("PKGV", pkgv.replace("AUTOINC", "0"))
+
+    extendpkgv_new = d.getVar("EXTENDPKGV", True)
+    if extendpkgv_old != extendpkgv_new:
+        # If EXTENDPKGV is changed and RDEPENDS_${PN}-dev has no change
+        # replace RDEPENDS_${PN}-dev with new EXTENDPKGV
+        if (pkgdev_rdep_value == d.getVar(pkgdev_rdep, True)):
+            d.setVar(pkgdev_rdep, pkgdev_rdep_value.replace(extendpkgv_old, extendpkgv_new))
+
+        # If EXTENDPKGV is changed and RDEPENDS_${PN}-staticdev has no change
+        # replace RDEPENDS_${PN}-staticdev with new EXTENDPKGV
+        if (pkgstaticdev_rdep_value == d.getVar(pkgstaticdev_rdep, True)):
+            d.setVar(pkgstaticdev_rdep, pkgstaticdev_rdep_value.replace(extendpkgv_old, extendpkgv_new))
+
+        # If EXTENDPKGV is changed and RRECOMMENDS_${PN}-dbg has no change
+        # replace RRECOMMENDS_${PN}-dbg with new EXTENDPKGV
+        if (pkgdbg_rrec_value == d.getVar(pkgdbg_rrec, True)):
+            d.setVar(pkgdbg_rrec, pkgdbg_rrec_value.replace(extendpkgv_old, extendpkgv_new))
 }
 
 LOCALEBASEPN ??= "${PN}"

Fixed in master with http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=b5e5d25c25f30db1f9855e24afef9d8f0bb77d35

Verified on master:6d9a3ac0515380d0789ee3d316c08212592a6f9a

Verified env:
    poky: 2a3f6772aadbe378259c87c05ab6f091866b63ef
    branch: master

Verified steps:

Modify conf/local.conf
MACHINE ?= "qemux86-64"
PACKAGE_CLASSES ?= "package_rpm"
require conf/multilib.conf
MULTILIBS = "multilib:lib32"
DEFAULTTUNE_virtclass-multilib-lib32 = "x86"
PRSERV_HOST = "localhost:10000"
INHERIT += "buildhistory"
BUILDHISTORY_COMMIT = "1"

start PR Server `bitbake-prserv --start --port=10000'

run `bitbake lib32-neard'


----------build log-------------------
builder@pek-yocto-build1:/buildarea3/zn/20130411$ bitbake lib32-neard
Loading cache: 100% |###############################################################################################################################################################################| ETA:  00:00:00
Loaded 1934 entries from dependency cache.

Build Configuration:
BB_VERSION        = "1.18.0"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "Ubuntu-11.10"
TARGET_SYS        = "x86_64-poky-linux"
MACHINE           = "qemux86-64"
DISTRO            = "poky"
DISTRO_VERSION    = "1.3+snapshot-20130411"
TUNE_FEATURES     = "m64"
TARGET_FPU        = ""
meta              
meta-yocto        
meta-yocto-bsp    = "master:2a3f6772aadbe378259c87c05ab6f091866b63ef"

NOTE: Resolving any missing task queue dependencies
NOTE: Preparing runqueue
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
NOTE: Tasks Summary: Attempted 1869 tasks of which 307 didn't need to be rerun and all succeeded.