$ git clone -n https://src.fedoraproject.org/rpms/xkbset.git /var/lib/mock/f45-build-38927-730/root/chroot_tmpdir/scmroot/xkbset
Cloning into '/var/lib/mock/f45-build-38927-730/root/chroot_tmpdir/scmroot/xkbset'...
$ git fetch origin c885aee2dba64fb385419b3fda628bce3d770dd5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xkbset
 * [new ref]         c885aee2dba64fb385419b3fda628bce3d770dd5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c885aee Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild