Fix selection undo... for real

scene/gui/text_edit.cpp

@@ -5613,7 +5613,7 @@ void TextEdit::undo() {
 
 	TextOperation op = undo_stack_pos->get();
 	_do_text_op(op, true);
-	if (op.from_line != op.to_line || op.to_column != op.from_column + 1)
+	if (op.type != TextOperation::TYPE_INSERT && (op.from_line != op.to_line || op.to_column != op.from_column + 1))
 		select(op.from_line, op.from_column, op.to_line, op.to_column);
 
 	current_op.version = op.prev_version;