Tab action to activate a model condition does not work

Actually, I just found how to fix it, but I still think it’s a bug. 

I have a filter on a Filter Set with the following options
Filter Type: Select Option
Filter Method: Server
Pick Options and Conditions(s): Manually
Model Condition to Affect: Subject

The Source Type of the filter is Manual and I have 2 options. 

In order to fix the problem, I changed the properties on the manual options I created from “What Conditions will this Option affect?” from “Affect Default Condition” to “Affect Other Condition(s)” and then added an Action to Activate the Condition.

It’s doing the same thing as if I had selected “Affect Default Condition” but for some reason that doesn’t fire the Action event on the model.