$ git clone -n https://src.fedoraproject.org/rpms/kf6-kcontacts.git /var/lib/mock/f40-build-742494-110786/root/chroot_tmpdir/scmroot/kf6-kcontacts
Cloning into '/var/lib/mock/f40-build-742494-110786/root/chroot_tmpdir/scmroot/kf6-kcontacts'...
$ git fetch origin 994ac70c2ed0f737c1d8fa93f48b659e29421ac2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kcontacts
 * [new ref]         994ac70c2ed0f737c1d8fa93f48b659e29421ac2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 994ac70 5.245.0