$ git clone -n https://src.fedoraproject.org/rpms/R-getPass.git /var/lib/mock/f45-build-6128-346/root/chroot_tmpdir/scmroot/R-getPass
Cloning into '/var/lib/mock/f45-build-6128-346/root/chroot_tmpdir/scmroot/R-getPass'...
$ git fetch origin ef1bd8caa0c9496d555dbb96865ba091fad4ec9c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-getPass
 * [new ref]         ef1bd8caa0c9496d555dbb96865ba091fad4ec9c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef1bd8c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild