$ git clone -n https://src.fedoraproject.org/rpms/libserf.git /var/lib/mock/f41-build-side-1-2645451-27102/root/chroot_tmpdir/scmroot/libserf
Cloning into '/var/lib/mock/f41-build-side-1-2645451-27102/root/chroot_tmpdir/scmroot/libserf'...
$ git fetch origin 508bd9fb380256723e6310fbd6f169c4aa52f4b8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libserf
 * [new ref]         508bd9fb380256723e6310fbd6f169c4aa52f4b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 508bd9f Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild