$ git clone -n https://src.fedoraproject.org/rpms/megaglest-data.git /var/lib/mock/f40-build-2297254-56448/root/chroot_tmpdir/scmroot/megaglest-data
Cloning into '/var/lib/mock/f40-build-2297254-56448/root/chroot_tmpdir/scmroot/megaglest-data'...
$ git fetch origin abf1d5a820124782f5c2d7c60487ab0a286a1ee1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/megaglest-data
 * [new ref]         abf1d5a820124782f5c2d7c60487ab0a286a1ee1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at abf1d5a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild