$ git clone -n https://src.fedoraproject.org/rpms/libfreenect.git /var/lib/mock/f39-build-2032740-47729/root/chroot_tmpdir/scmroot/libfreenect
Cloning into '/var/lib/mock/f39-build-2032740-47729/root/chroot_tmpdir/scmroot/libfreenect'...
$ git fetch origin 1ef45bc200d380be0c8ebe1e3f0d1a4cf1eaaa1b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libfreenect
 * [new ref]         1ef45bc200d380be0c8ebe1e3f0d1a4cf1eaaa1b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ef45bc Fix build error with cython 3