$ git clone -n https://src.fedoraproject.org/rpms/kontact.git /var/lib/mock/f39-build-1973999-43328/root/chroot_tmpdir/scmroot/kontact
Cloning into '/var/lib/mock/f39-build-1973999-43328/root/chroot_tmpdir/scmroot/kontact'...
$ git fetch origin 8ab3f8714b2c171a159738739e9a68331363342a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kontact
 * [new ref]         8ab3f8714b2c171a159738739e9a68331363342a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ab3f87 23.08.3