$ git clone -n https://src.fedoraproject.org/rpms/python-jupyter-core.git /var/lib/mock/f40-build-2181011-51174/root/chroot_tmpdir/scmroot/python-jupyter-core
Cloning into '/var/lib/mock/f40-build-2181011-51174/root/chroot_tmpdir/scmroot/python-jupyter-core'...
$ git fetch origin 31f3942a63238b0abff1ce94db47a87157cb7501:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jupyter-core
 * [new ref]         31f3942a63238b0abff1ce94db47a87157cb7501 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31f3942 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild