$ git clone -n https://src.fedoraproject.org/rpms/barrage.git /var/lib/mock/f40-build-798504-141958/root/chroot_tmpdir/scmroot/barrage
Cloning into '/var/lib/mock/f40-build-798504-141958/root/chroot_tmpdir/scmroot/barrage'...
$ git fetch origin e4280716d936d8ac90a9730d1d8f3d7baa462fa2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/barrage
 * [new ref]         e4280716d936d8ac90a9730d1d8f3d7baa462fa2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e428071 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild