$ git clone -n https://src.fedoraproject.org/rpms/python-jsonschema.git /var/lib/mock/f45-build-31202-651/root/chroot_tmpdir/scmroot/python-jsonschema
Cloning into '/var/lib/mock/f45-build-31202-651/root/chroot_tmpdir/scmroot/python-jsonschema'...
$ git fetch origin 572209c0320f98267d8217d5f4506e9f190d5a9f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jsonschema
 * [new ref]         572209c0320f98267d8217d5f4506e9f190d5a9f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 572209c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild