$ git clone -n https://src.fedoraproject.org/rpms/python-ipykernel.git /var/lib/mock/f40-build-2722413-73094/root/chroot_tmpdir/scmroot/python-ipykernel
Cloning into '/var/lib/mock/f40-build-2722413-73094/root/chroot_tmpdir/scmroot/python-ipykernel'...
$ git fetch origin baad344f6f0aee084f4f3c18ba2a84a7fd1966b0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ipykernel
 * [new ref]         baad344f6f0aee084f4f3c18ba2a84a7fd1966b0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at baad344 Update to 6.29.3 (RHBZ#2246019)