[BUGFIX] Use SORT_REGULAR to keep sub-arrays.

array_unique() compares by casting to string, but if you cast an array to string, you end up with the word "Array", so all but the first entry is removed.
[TASK] Set version in composer file
[TASK] Fix build script
[TASK] Only stop preview rendering if no content was generated
[BUGFIX] Avoid double down on flux provider execution
[BUGFIX] Fixed localized c&p, found ancient tomb stone
[BUGFIX] Fixed nested localization
[BUGFIX] Fixed c&p inside container elements
[BUGFIX] Nested hidden children should be localized
[BUGFIX] Using tcemain substitution id
[BUGFIX] Use provided id to track method calls
[BUGFIX] Fixed c&p INTO nested elements
[TASK] Updated tests
[BUGFIX] Update to possible colPos only on root copy elements
[TASK] Removed obsolete method
[TASK] Remove backtracing on d&d
[BUGFIX] Track methods from inside provider too
[TASK] Added helpful documentation to tracking methods
[TASK] Make Provider->reset() also reset tracked calls
[TASK] Fix broken tests