Fix cables getting 1 morbillion serializations (#17201)

Resources/Prototypes/Entities/Structures/Power/cables.yml

@@ -11,9 +11,11 @@
   - type: Transform
     anchored: true
     noRot: true
+  # TODO: Remove both of these, same with CollideOnAnchor
   - type: Physics
     bodyType: Static
     canCollide: false
+  - type: Fixtures
   - type: Sprite
     drawdepth: ThinWire
     visible: false
@@ -43,7 +45,7 @@
     lowVoltageNode: power
   - type: CableVis
     node: power
-   
+
 
 - type: entity
   parent: CableBase