Not recognizable column in query result

This change in PLFM added a new field in the SelectColumn object: https://github.com/Sage-Bionetworks/Synapse-Repository-Services/pull/3348/files#diff-3391b309663d046c639a8b5ad69aa0d1
The Python client code does not recognize the new field. This cause error running table query against staging in both R and Python client. My test against staging:

If we release staging without a fix, all table queries in the Python client and synapser client will be broken.