$ git clone -n https://src.fedoraproject.org/rpms/gimgtools.git /var/lib/mock/f40-build-798038-141650/root/chroot_tmpdir/scmroot/gimgtools
Cloning into '/var/lib/mock/f40-build-798038-141650/root/chroot_tmpdir/scmroot/gimgtools'...
$ git fetch origin bf3a3ad7c869e5bb337065b6ad39c18e7680d9b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gimgtools
 * [new ref]         bf3a3ad7c869e5bb337065b6ad39c18e7680d9b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf3a3ad Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild