Problem: batch functionality can't deal with hidden files

[sevein]

User experiences problems with SIPs including hidden files, e.g. bag validation issues. The Batch API and the submission web interface should provide a new option to configure the batch process to exclude hidden files before processing.

[scollazo]

This is not working as expected, when launching a batch , hidden files are launched instead of the batch:

[joel-simpson]

After further testing / analysis - it seems that this is a new issue. The original issue was about removing hidden files from SIPs - and this appears to work as expected.
The problem scollazo points out occurs when there are hidden files in the Batch directory. We believe this wasn't a problem before the 0.41.0 release; so this may have been introduced as a side effect (and explains why we didn't see this in earlier testing).