Fix division by zero in aspect ratio calculation

Author: patwork

editor/plugins/canvas_item_editor_plugin.cpp

@@ -1786,7 +1786,7 @@ bool CanvasItemEditor::_gui_input_resize(const Ref<InputEvent> &p_event) {
 			bool symmetric = m->is_alt_pressed();
 
 			Rect2 local_rect = ci->_edit_get_rect();
-			real_t aspect = local_rect.get_size().y / local_rect.get_size().x;
+			real_t aspect = local_rect.has_area() ? (local_rect.get_size().y / local_rect.get_size().x) : (local_rect.get_size().y + 1.0) / (local_rect.get_size().x + 1.0);
 			Point2 current_begin = local_rect.get_position();
 			Point2 current_end = local_rect.get_position() + local_rect.get_size();
 			Point2 max_begin = (symmetric) ? (current_begin + current_end - ci->_edit_get_minimum_size()) / 2.0 : current_end - ci->_edit_get_minimum_size();