Properly track some user-initiatied rigid-body modifications.

src/dynamics/solver/parallel_island_solver.rs

@@ -250,7 +250,7 @@ impl ParallelIslandSolver {
                     let batch_size = thread.batch_size;
                     for handle in active_bodies[thread.position_writeback_index] {
                         let rb = &mut bodies[*handle];
-                        rb.set_position(positions[rb.active_set_offset], false);
+                        rb.set_position_internal(positions[rb.active_set_offset]);
                     }
                 }
             })

src/dynamics/solver/position_solver.rs

@@ -120,7 +120,7 @@ impl PositionSolver {
         }
 
         bodies.foreach_active_island_body_mut_internal(island_id, |_, rb| {
-            rb.set_position(self.positions[rb.active_set_offset], false)
+            rb.set_position_internal(self.positions[rb.active_set_offset])
         });
     }
 }