getViewsFromJson invoked twice in optimization branch

[vincent-karuri]

getViewsFromJson is invoked twice on each widget. This can cause issues in the case that a widget expects some logic to be invoked once during widget instantiation.

For instance, RDT has a case where we launch a camera view when getViewsFromJson is invoked. This invocation is done once in the current master code so no issue there. In the optimize branch however, there's more than one call meaning the camera view will be launched twice. After the first camera view is closed, the user sees a second camera view which is confusing.

This issue will more widely affect all widgets which perform certain non-idempotent actions in getViewsFromJson with the assumption that it is invoked only once.