Complete automatic constraint behavior

src/scene/view/render.rs

@@ -3435,7 +3435,10 @@ impl Scene {
         &self,
         inst: &ViewportInstance,
     ) -> Arc<Vec<WireModel>> {
-        if self.selected.is_empty() && self.hover_highlight.is_none() {
+        if self.selected.is_empty()
+            && self.hover_highlight.is_none()
+            && self.constraint_hover_highlights.is_empty()
+        {
             return Arc::new(Vec::new());
         }