$ git clone -n https://src.fedoraproject.org/rpms/openarc.git /var/lib/mock/f39-build-1537232-36362/root/chroot_tmpdir/scmroot/openarc
Cloning into '/var/lib/mock/f39-build-1537232-36362/root/chroot_tmpdir/scmroot/openarc'...
$ git fetch origin 0d1cf62d94718ea747f36a2bd85c49c2a2e2d39c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openarc
 * [new ref]         0d1cf62d94718ea747f36a2bd85c49c2a2e2d39c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d1cf62 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild