Some animation transition graphs are marked as "read only" and can't be edited

When opening ThirdPersonAnimBlueprint (found in QAGame), there are some transitions that are marked as read only and cannot be edited. I talked to the person who made this anim blueprint, and he doesn't know why that is.

The read only transitions are:

JumpStart to JumpLoop
JumpLoop to JumpEnd
JumpEnd to Idle/Run

The other transitions can be edited.

This issue hasn't been seen in other anim blueprints.

1. Launch UE4Editor.exe QAGame.
2. Open ThirdPersonAnimBlueprint in Persona.
3. Expand AnimGraph and then Locomotion.
4. Double-click the transition rule between JumpStart and JumpLoop to open the graph.
5. Right-click in the graph

Fix UE-51650

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