Merge pull request #22844 from samgreen/fix_gui_dragging_spam

Fix spam when dragging in the editor

scene/gui/control.cpp

@@ -769,7 +769,7 @@ void Control::force_drag(const Variant &p_data, Control *p_control) {
 void Control::set_drag_preview(Control *p_control) {
 
 	ERR_FAIL_COND(!is_inside_tree());
-	ERR_FAIL_COND(get_viewport()->gui_is_dragging());
+	ERR_FAIL_COND(!get_viewport()->gui_is_dragging());
 	get_viewport()->_gui_set_drag_preview(this, p_control);
 }