Error during creating table with LSI by field with uppercase name

Error executing query CREATE CUSTOM INDEX ON "u_64b1c69e9c3f44e095d68606b65912ad"."u_eff52ec28b1711e4b3f1080027d57fb5"(u_LastPostedBy) USING 'com.mirantis.
magnetodb.cassandra.db.index.MagnetoDBLocalSecondaryIndex' WITH OPTIONS = {'query_properties_field':'false'}:code=2200 [Invalid query] message="No column definition found for column u_lastpostedby"

Traceback (most recent call last):
  File "/opt/stack/magnetodb/magnetodb/common/cassandra/cluster_handler.py", line 153, in execute_query
    return self.__session.execute(query)
  File "/usr/local/lib/python2.7/dist-packages/cassandra/cluster.py", line 1295, in execute
    result = future.result(timeout)
  File "/usr/local/lib/python2.7/dist-packages/cassandra/cluster.py", line 2799, in result
    raise self._final_exception
InvalidRequest: code=2200 [Invalid query] message="No column definition found for column u_lastpostedby"