Rename temp file so it doesn't confuse parallel processing
Rename temp file so it doesn't confuse parallel processing

The loops used to write out a temp file called nspn_id_col, but this
will get overwritten if there are two
measures being run at the same time.

Hopefully fixed here!

KirstieJane/UCHANGE_ProcessingPipeline,KirstieJane/UCHANGE_ProcessingPipeline