If you add a print statement in this method

long press the textfield, you will see the print statement even if text selection does not change. This behavior is contradicted to the EditableText.onSelectionChange contract. Unfortunately, this is needed because textfield relies on this call to update the handle visibility.

We should fix this by refactoring out selection overlay of editable text so that text field does not need to rely on this callback, and then we should finally able to fix the EditableText.onSelectionChanged.