$ git clone -n https://src.fedoraproject.org/rpms/foomatic-db.git /var/lib/mock/f40-build-2437492-60843/root/chroot_tmpdir/scmroot/foomatic-db
Cloning into '/var/lib/mock/f40-build-2437492-60843/root/chroot_tmpdir/scmroot/foomatic-db'...
$ git fetch origin 70103afbd9ac6c4efebe9d2f5b336e7c33e6dd0a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/foomatic-db
 * [new ref]         70103afbd9ac6c4efebe9d2f5b336e7c33e6dd0a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70103af Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild