$ git clone -n https://src.fedoraproject.org/rpms/python-notebook.git /var/lib/mock/f41-build-side-1-2814744-32949/root/chroot_tmpdir/scmroot/python-notebook
Cloning into '/var/lib/mock/f41-build-side-1-2814744-32949/root/chroot_tmpdir/scmroot/python-notebook'...
$ git fetch origin 47837db7f8e2efc01fb366b90edc4437016a575f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-notebook
 * [new ref]         47837db7f8e2efc01fb366b90edc4437016a575f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47837db Update to 7.2.2 (rhbz#2284126)