1. Create a survey
2. Add at least one additional token field
3. Add a group and a question
4. "Set conditions" for the question
5. In the Conditions Designer, switch the Question tab to "Token fields", and select your new token attribute
6. Leave the operator set to "Equals"
7. Switch the Answer tab to "Constant"
8. Enter a simple value, like "Y"
9. Click Add Condition

Expected result:
Condition is added; in this case, the equivalent of {TOKEN:ATTRIBUTE_1 == 'Y'}

Actual result:
Condition is silently ignored without error.