The newest python3-git requires both operator and enum modules. Right now it RDEPENDS on python3-misc which fixes the problem, but we should probably split those out from python3-misc so we don't have to include all other unnecessary modules from python3-misc when installing python3-git.
Fixed here: http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=b2e6ac630af3ad8dd7ba142c365cb6b7ebfa278c