$ git clone -n https://src.fedoraproject.org/rpms/kf6-kcompletion.git /var/lib/mock/f41-build-side-1-2647327-27301/root/chroot_tmpdir/scmroot/kf6-kcompletion
Cloning into '/var/lib/mock/f41-build-side-1-2647327-27301/root/chroot_tmpdir/scmroot/kf6-kcompletion'...
$ git fetch origin 7761ba501270b94b4fb70aa44685e098f98cc564:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kcompletion
 * [new ref]         7761ba501270b94b4fb70aa44685e098f98cc564 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7761ba5 6.5.0