$ git clone -n https://src.fedoraproject.org/rpms/kgpg.git /var/lib/mock/f40-build-2264121-54552/root/chroot_tmpdir/scmroot/kgpg
Cloning into '/var/lib/mock/f40-build-2264121-54552/root/chroot_tmpdir/scmroot/kgpg'...
$ git fetch origin 6923c95178de2e1712afaa64c519d7e573a2660b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kgpg
 * [new ref]         6923c95178de2e1712afaa64c519d7e573a2660b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6923c95 24.01.90