Attempting to change a variable that is connected to a node and an empty reroute node by dragging a reference on top of the existing reference causes the editor to freeze.

The user provided a video of the issue occurring: [Link Removed]

Found in 4.11.2 binary. Reproduced in 4.10.4 binary and Main CL 2952833

Steps to Reproduce

1. Open the editor (ThirdPersonProject)
2. Go into the ThirdPersonCharacter blueprint
3. Drag the Camera Boom from the component tree into the blueprint
4. Drag off of Camera Boom and Get Forward Vector
5. Drag off of Camera Boom and add a reroute node
6. Drag the Follow Camera on top of the Camera Boom variable to change it.

Result: Editor will freeze

Expected: Editor would not freeze and variable would be changed.

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ComponentUE - Gameplay - Blueprint
Affects Versions4.104.114.13
Target Fix4.13
Fix Commit3077275
Main Commit3092051
Release Commit3077275
CreatedApr 25, 2016
ResolvedAug 4, 2016
UpdatedApr 27, 2018