$ git clone -n https://src.fedoraproject.org/rpms/amavis.git /var/lib/mock/f39-build-1561353-37372/root/chroot_tmpdir/scmroot/amavis
Cloning into '/var/lib/mock/f39-build-1561353-37372/root/chroot_tmpdir/scmroot/amavis'...
$ git fetch origin aa159981c1f77f9aed6a37f45491555bc0c5271e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/amavis
 * [new ref]         aa159981c1f77f9aed6a37f45491555bc0c5271e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa15998 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild