Issue Summary

If a Topic has an special character like "&" in its description, an error message like below will be triggered upon trying to change the topic and Save:

Invalid topic
Topic not found

In browser console:

"messageKey": "questions.error.topic.not.found"{}

Steps to Reproduce

1. Have a Topic that includes a description with "&" character.
2. Try to make a change to this existing topic, like making it Featured or not Featured anymore.
3. Hit Save.

Expected Results

It should work just fine and save the changes.

Actual Results

The below exception is thrown:

Invalid topic
Topic not found

In browser console:

"messageKey": "questions.error.topic.not.found" 

Workaround

Change the topic description and remove the special character (e.g. "&"), and Save.