I had not, and for some weird reason that is never the first thought that comes to my mind, even though it should be.
However, when I did so, I got to a step that is seemingly unrelated, where the debugger reported an Unexpected error and advised me to submit a bug report, which I have now done.
OK. Bubble fixed the unrelated issue that was preventing me from testing this. I have now tested it.
Unfortunately, in the Design view, I’ve set a Conditional on the contents of the underlying text DB field, which the debugger does not show, which I should have realized. Conditionals are not a workflow action.
As such, I’m now where I was before.
I set a conditional, and the expected behavior does not occur.