$ git clone -n https://src.fedoraproject.org/rpms/python-mujson.git /var/lib/mock/f40-build-2027682-47323/root/chroot_tmpdir/scmroot/python-mujson
Cloning into '/var/lib/mock/f40-build-2027682-47323/root/chroot_tmpdir/scmroot/python-mujson'...
$ git fetch origin b64a16442e47795157ead28a07cb2ac22a785823:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mujson
 * [new ref]         b64a16442e47795157ead28a07cb2ac22a785823 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b64a164 Convert to pyproject macros