$ git clone -n https://src.fedoraproject.org/rpms/backupninja.git /var/lib/mock/f40-build-2274397-55013/root/chroot_tmpdir/scmroot/backupninja
Cloning into '/var/lib/mock/f40-build-2274397-55013/root/chroot_tmpdir/scmroot/backupninja'...
$ git fetch origin 3e0189c8ffaa9503fcf195374f1e83d49c74c1ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/backupninja
 * [new ref]         3e0189c8ffaa9503fcf195374f1e83d49c74c1ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e0189c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild