"Upgrade STAT Axis Values from Discrete to Ranges" fails when the file name doesn't follow the arbitrary naming convention

[naipefoundry]

The "Upgrade STAT Axis Values from Discrete to Ranges" script fails if the output variable font file does not follow the naming convention "familyNameVF" such as when there is a fileName custom parameter in the Variable Font Settings export.

It would be super nice if the script used the file name set up by the user :-)