$ git clone -n https://src.fedoraproject.org/rpms/python-nbsphinx.git /var/lib/mock/f41-build-side-2-python-2706210-30419/root/chroot_tmpdir/scmroot/python-nbsphinx
Cloning into '/var/lib/mock/f41-build-side-2-python-2706210-30419/root/chroot_tmpdir/scmroot/python-nbsphinx'...
$ git fetch origin 36233da7001f2ea8547035f6da819cdcf36117b0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-nbsphinx
 * [new ref]         36233da7001f2ea8547035f6da819cdcf36117b0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 36233da Update to 0.9.4 (rhbz#2279390)