$ git clone -n https://src.fedoraproject.org/rpms/kf5-kcompletion.git /var/lib/mock/f39-build-1657780-40570/root/chroot_tmpdir/scmroot/kf5-kcompletion
Cloning into '/var/lib/mock/f39-build-1657780-40570/root/chroot_tmpdir/scmroot/kf5-kcompletion'...
$ git fetch origin f53caefcd36d1a7a4c8dacaab22d0444d5101778:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kcompletion
 * [new ref]         f53caefcd36d1a7a4c8dacaab22d0444d5101778 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f53caef 5.111.0