$ git clone -n https://src.fedoraproject.org/rpms/happy.git /var/lib/mock/f40-build-2290480-55984/root/chroot_tmpdir/scmroot/happy
Cloning into '/var/lib/mock/f40-build-2290480-55984/root/chroot_tmpdir/scmroot/happy'...
$ git fetch origin e977934a17318412b00715ca6346cf283e98d3e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/happy
 * [new ref]         e977934a17318412b00715ca6346cf283e98d3e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e977934 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild