CSV exports from the database seem to have a few changes as follows, which so far I failed to find in the release documentation.

• Export of String field used to be enclosed within quotes ("), but there are no quotes since 3.0
• Export of an array field that does not have any elements is not enclosed in quotes i.e. exported as [], while arrays that have value are enclosed within quotes i.e. "[ ""a"" ]".
  This seems to break my current scripts based on CSV exports, I am wondering if there is any workarounds that I can use ?