File data type process data default value files renamed after upgrade to 7.14.5

I noticed after the most recent upgrading to version 7.14.5 the names of the Default Value used in a process data for file data types were renamed from a text title (e.g. NOTIFY_ACCT.txt) to a numeric title like the form xml and html files.The upgrade only affected the files that were assigned to process data that were in the system at the time of the upgrade. Files assigned to process data that I added after the upgrade were not renamed.I did not see anything regarding this change in the release notes. Would renaming the files assigned to process data effect process data used in email notifications?