If a patch includes text after the scissors line (such as Upstream-status: or really any other explanatory text) then when devtool generates a git tree from the patches, that text is lost. The culprit is actually git, which ignores that text and thus it never makes it into the commit message, so when patches are re-generated from the git tree, the text isn't there anymore.
Another case where Upstream-status got lost: http://lists.openembedded.org/pipermail/openembedded-devel/2018-April/117833.html This time around it was too early in the patch headers, not the patch body where description goes...
Bulk move from 4.99 or 0.00 to 5.99
bulk change to add Saul's non-WR address.
Bulk change: Remove Saul's old WR address.