$ git clone -n https://src.fedoraproject.org/rpms/imlib2.git /var/lib/mock/f40-build-2291650-56061/root/chroot_tmpdir/scmroot/imlib2
Cloning into '/var/lib/mock/f40-build-2291650-56061/root/chroot_tmpdir/scmroot/imlib2'...
$ git fetch origin d5cfe920186ecade445d8fd0c04323a0a78a8952:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/imlib2
 * [new ref]         d5cfe920186ecade445d8fd0c04323a0a78a8952 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d5cfe92 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild