$ git clone -n https://src.fedoraproject.org/rpms/fillets-ng.git /var/lib/mock/f39-build-1563046-37470/root/chroot_tmpdir/scmroot/fillets-ng
Cloning into '/var/lib/mock/f39-build-1563046-37470/root/chroot_tmpdir/scmroot/fillets-ng'...
$ git fetch origin 112b7e92c2a3f5e0666e248907582364ab5125a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fillets-ng
 * [new ref]         112b7e92c2a3f5e0666e248907582364ab5125a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 112b7e9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild