fix: complete retail parity stability pass

tests/AcDream.App.Tests/Physics/LiveEntityOrdinaryPhysicsUpdaterTests.cs

@@ -12,7 +12,7 @@ namespace AcDream.App.Tests.Physics;
 
 public sealed class LiveEntityOrdinaryPhysicsUpdaterTests
 {
-    private const uint Guid = 0x70000071u;
+    private const uint Guid = 0x50000071u;
     private const uint SourceCell = 0xA9B40039u;
     private const uint DestinationCell = 0xAAB40001u;
 
@@ -37,7 +37,8 @@ public sealed class LiveEntityOrdinaryPhysicsUpdaterTests
                 Rotation = Quaternion.Identity,
                 MeshRefs = Array.Empty<MeshRef>(),
                 ParentCellId = SourceCell,
-            });
+            },
+            isLocalPlayer: true);
         WorldEntity entity = Assert.IsType<WorldEntity>(record.WorldEntity);
 
         var remote = new AcDream.Runtime.Physics.RemoteMotion
@@ -84,6 +85,17 @@ public sealed class LiveEntityOrdinaryPhysicsUpdaterTests
         Assert.True(entity.Position.X > 192f);
         Assert.Equal(entity.Position, record.PhysicsBody.Position);
         Assert.Equal(epoch, record.ObjectClockEpoch);
+
+        // #320: retiring the landblock the player walked out of must not
+        // sweep the still-live player into a DeferredCell park. Before the
+        // ordinary-cell commit existed, FullCellId remained SourceCell and
+        // this exact retirement selected the player as an affected spatial
+        // root.
+        live.Physics.SetPosition.ParkCollisionResidents(
+            SourceCell,
+            includeOutdoorCells: true);
+        Assert.Equal(DestinationCell, record.FullCellId);
+        Assert.True(live.Physics.IsSpatialRoot(record.Canonical));
     }
 
     [Fact]