$ git clone -n https://src.fedoraproject.org/rpms/python-pypet.git /var/lib/mock/f39-build-1666942-40804/root/chroot_tmpdir/scmroot/python-pypet
Cloning into '/var/lib/mock/f39-build-1666942-40804/root/chroot_tmpdir/scmroot/python-pypet'...
$ git fetch origin 70db7acb0a9dbc0f0e6686e22ba0745e55cd3a25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pypet
 * [new ref]         70db7acb0a9dbc0f0e6686e22ba0745e55cd3a25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70db7ac CHANGES.txt is documentation, not a license file