$ git clone -n https://src.fedoraproject.org/rpms/jansi1.git /var/lib/mock/f38-build-side-42-init-devel-706539-27171/root/chroot_tmpdir/scmroot/jansi1
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-706539-27171/root/chroot_tmpdir/scmroot/jansi1'...
$ git fetch origin e5f78bf1fbbe27bf617c7dea8a13801954ee98c2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jansi1
 * [new ref]         e5f78bf1fbbe27bf617c7dea8a13801954ee98c2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5f78bf Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild