Override selectall on RangeSelection #4671
Merged
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See issue description. Given that it works well on FF, I've decided not to overide FF's behavior for now. Safari's behavior is sometimes worse than Chrome, caret jumping around instead of selecting so Chrome + Safari are a must-do override.
I didn't narrow down to checking whether there's DecoratorNodes at its boundaries because the root cause seems to be
contenteditable=false
but it doesn't necessarily have to sit at the top^ This will not work on Chrome
Might be that the pattern is first line of descendants not contenteditable (given the correct valid Nodes that can take this properties (i.e. iframe can't take it)) but since I'm not too confident on what the pattern is and the logic might be overly complicated, I'm overriding them all.
Fixes #4670