$ git clone -n https://src.fedoraproject.org/rpms/gsm.git /var/lib/mock/f40-build-787463-134776/root/chroot_tmpdir/scmroot/gsm
Cloning into '/var/lib/mock/f40-build-787463-134776/root/chroot_tmpdir/scmroot/gsm'...
$ git fetch origin 449aa537f8dddd674e497e65205711b28cd347a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gsm
 * [new ref]         449aa537f8dddd674e497e65205711b28cd347a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 449aa53 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild