Merge pull request #18566 from robfram/fix-lineedit-18184

Fix placeholders position in `LineEdit` when editing inside the Editor

scene/gui/line_edit.cpp

@@ -1143,7 +1143,6 @@ void LineEdit::clear_internal() {
 
 	_clear_undo_stack();
 	cached_width = 0;
-	cached_placeholder_width = 0;
 	cursor_pos = 0;
 	window_pos = 0;
 	undo_text = "";