$ git clone -n https://src.fedoraproject.org/rpms/jansson.git /var/lib/mock/f40-build-730684-103590/root/chroot_tmpdir/scmroot/jansson
Cloning into '/var/lib/mock/f40-build-730684-103590/root/chroot_tmpdir/scmroot/jansson'...
$ git fetch origin ae370fd2688944fc2b0a08e8171dc20d2d43569a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jansson
 * [new ref]         ae370fd2688944fc2b0a08e8171dc20d2d43569a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae370fd Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild