Fix grabbing from socket

Runtime/Tools/Scripts/Socket.cs

@@ -165,7 +165,8 @@ namespace Passer {
             ReverseParenting,
             Joint,
             StaticJoint,
-            ColliderDuplication
+            ColliderDuplication,
+            ReverseJoint,
         }
         public AttachMethod attachMethod = AttachMethod.Unknown;
 
@@ -277,6 +278,9 @@ namespace Passer {
             Attach(objectToAttach, false);
         }
         public bool Attach(GameObject objectToAttach, bool rangeCheck) {
+            if (objectToAttach == null)
+                return false;
+
             bool success = Attach(objectToAttach.transform, rangeCheck);
             return success;
         }
@@ -515,6 +519,7 @@ namespace Passer {
             attachedTransform = objRigidbody.transform;
             attachedHandle = handle;
             handle.socket = this;
+            attachMethod = AttachMethod.ReverseJoint;
         }
 
         protected virtual void AttachSocketParenting(Rigidbody objRigidbody, Handle handle, Rigidbody socketRigidbody) {
@@ -648,6 +653,9 @@ namespace Passer {
                         return;
                     }
                     break;
+                case AttachMethod.ReverseJoint:
+                    ReleaseRigidbodyReverseJoint();
+                    break;
                 default:
 
                     if (this.rigidbodyDisabled != null)