$ git clone -n https://src.fedoraproject.org/rpms/fbrnch.git /var/lib/mock/f40-build-801581-143821/root/chroot_tmpdir/scmroot/fbrnch
Cloning into '/var/lib/mock/f40-build-801581-143821/root/chroot_tmpdir/scmroot/fbrnch'...
$ git fetch origin 36c0325f65f555b6059b16d3aaebbb8ef9084350:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fbrnch
 * [new ref]         36c0325f65f555b6059b16d3aaebbb8ef9084350 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 36c0325 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild