$ git clone -n https://src.fedoraproject.org/rpms/python-jsonschema-spec.git /var/lib/mock/f39-build-1658532-40596/root/chroot_tmpdir/scmroot/python-jsonschema-spec
Cloning into '/var/lib/mock/f39-build-1658532-40596/root/chroot_tmpdir/scmroot/python-jsonschema-spec'...
$ git fetch origin 06f05673bbd7cdb2e5801b3ed6eb24893d539559:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jsonschema-spec
 * [new ref]         06f05673bbd7cdb2e5801b3ed6eb24893d539559 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 06f0567 Updato to 0.2.4