$ git clone -n https://src.fedoraproject.org/rpms/R-RM2.git /var/lib/mock/f40-build-2270381-54810/root/chroot_tmpdir/scmroot/R-RM2
Cloning into '/var/lib/mock/f40-build-2270381-54810/root/chroot_tmpdir/scmroot/R-RM2'...
$ git fetch origin 7159062eac947dd586a004b7cf27c75bbbebc58d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-RM2
 * [new ref]         7159062eac947dd586a004b7cf27c75bbbebc58d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7159062 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild