Using "text" type attributes as filters in a smart list
We're getting errors in one of our smart lists. One of the filters includes a field that has a type of "text" (not "string). I noticed that when using text type filters, you don't have the option to include multiple values (notice how there's no greeen "+" icon for the "content engagement history" filter:

Is this intentional/expected behavior?
Would this cause an error when adding the "send email" smart campaign to an engagement program stream (Marketo will not allow us to approve it within the stream)?
