$ git clone -n https://src.fedoraproject.org/rpms/python-jupyter-sphinx.git /var/lib/mock/f40-build-2246366-53808/root/chroot_tmpdir/scmroot/python-jupyter-sphinx
Cloning into '/var/lib/mock/f40-build-2246366-53808/root/chroot_tmpdir/scmroot/python-jupyter-sphinx'...
$ git fetch origin 6c0f0aa29634ac05fc01afc261b3f17021eeb60b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jupyter-sphinx
 * [new ref]         6c0f0aa29634ac05fc01afc261b3f17021eeb60b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c0f0aa Version 0.5.3