v4.3.0.6 - better history and triple strings

History now resets to the bottom of the stack every time a command is executed. It feels much more intuitive now.

Unterminated triple strings were incorrectly being accepted and truncated. This is no longer happening.

However, I found a bug in Godot along the way that has interrupted progress in handling multi-line input and triple strings. godotengine/godot#98481