$ git clone -n https://src.fedoraproject.org/rpms/rkcommon.git /var/lib/mock/f39-build-1670453-40849/root/chroot_tmpdir/scmroot/rkcommon
Cloning into '/var/lib/mock/f39-build-1670453-40849/root/chroot_tmpdir/scmroot/rkcommon'...
$ git fetch origin 183229bf5776ef229c8284dd408ac57b83f887e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rkcommon
 * [new ref]         183229bf5776ef229c8284dd408ac57b83f887e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 183229b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild