Fix broad-phase becomming potentially invalid after collision group change

.vscode/tasks.json

@@ -259,6 +259,21 @@
             ],
             "group": "build"
         },
+        {
+            "label": "🪲 debug 3d − 💌 deterministic",
+            "type": "shell",
+            "command": "cargo",
+            "args": [
+                "run",
+                "--bin",
+                "all_examples3",
+                "--features",
+                "enhanced-determinism",
+                "--",
+                "--pause"
+            ],
+            "group": "build"
+        },
         {
             "label": "🛠 tests",
             "type": "shell",

src/geometry/broad_phase_multi_sap/broad_phase.rs

@@ -467,7 +467,7 @@ impl BroadPhase {
                 ) = colliders.index_bundle(handle.0);
 
                 if !co_changes.needs_broad_phase_update() {
-                    return;
+                    continue;
                 }
                 let mut new_proxy_id = co_bf_data.proxy_index;