$ git clone -n https://src.fedoraproject.org/rpms/kontact.git /var/lib/mock/f41-build-3152520-40629/root/chroot_tmpdir/scmroot/kontact
Cloning into '/var/lib/mock/f41-build-3152520-40629/root/chroot_tmpdir/scmroot/kontact'...
$ git fetch origin 50d11d289090b5604871b39e1ed4b8c6e8972e72:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kontact
 * [new ref]         50d11d289090b5604871b39e1ed4b8c6e8972e72 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50d11d2 24.12.1