$ git clone -n https://src.fedoraproject.org/rpms/file-roller.git /var/lib/mock/f40-build-2278212-55263/root/chroot_tmpdir/scmroot/file-roller
Cloning into '/var/lib/mock/f40-build-2278212-55263/root/chroot_tmpdir/scmroot/file-roller'...
$ git fetch origin 31604a2e5dbf376844bed1650116da8db8e3cd49:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/file-roller
 * [new ref]         31604a2e5dbf376844bed1650116da8db8e3cd49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31604a2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild