$ git clone -n https://src.fedoraproject.org/rpms/python-jsonschema.git /var/lib/mock/f39-build-1554253-37043/root/chroot_tmpdir/scmroot/python-jsonschema
Cloning into '/var/lib/mock/f39-build-1554253-37043/root/chroot_tmpdir/scmroot/python-jsonschema'...
$ git fetch origin 79c5bfa2182fa5d6ce3b9cdb1b51670fa2587417:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jsonschema
 * [new ref]         79c5bfa2182fa5d6ce3b9cdb1b51670fa2587417 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 79c5bfa Update to 4.19.1 release (#2239879)