$ git clone -n https://src.fedoraproject.org/rpms/python-notebook.git /var/lib/mock/f38-build-side-42-init-devel-724112-27299/root/chroot_tmpdir/scmroot/python-notebook
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-724112-27299/root/chroot_tmpdir/scmroot/python-notebook'...
$ git fetch origin d6ea705c58dc3816412695716c6fbd9e0c25b27d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-notebook
 * [new ref]         d6ea705c58dc3816412695716c6fbd9e0c25b27d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6ea705 Convert to %autorelease and %autochangelog