List of files to process may be larger than it should be

[regan-sarwas]

Try this:

• Update an Argos deployment start date from null to non null: some results files will be deleted, and issues created (file will not be reprocessed due to issues)
• update the deployment start date back to null: the issues will be deleted, and the files will be listed for reprocessing
• update the deployment start date back to non-null: issues will not get created (issue generation is based of deleting results files), so all files will be available for reprocessing (however some cannot be because they have no deployment)

I think there is a bug here: the list of files to process should not include those without a valid deployment.

I tried to fix this, and ran out of time. This is not a major problem, because when reprocessing occurs, those that cannot be processed will generate new issues to avoid repeated attempts to reprocess.