Attached is a video of how to reproduce the problem on UWP.
Steps to repro
- Open SDKExamples > AutoCompleteView > Key Features
- Select a value for Tokens Support
- Select a value for Filtering Behavior
- Start to enter a value for Watermark, but do not auto-complete it (leave the popup open and go to the next step)
- Click back into the Filtering Behavior box
=> Observe the infinite loop.