I don’t know what this little info window thing is called, but it gets cut off in fluid.mlpregressor~ (and presumably in other places too):
What’s getting cut off is, it seems, a warning generated by the Python ReStructuredText parser about not being able to deal with the :fluid-obj: thingy. Which I did dimly remember being a problem, but not one that was polluting the digest text. Will mend before the end of alpha. Certainly before the end of beta 
Hah, I didn’t even notice the text that was cut off (or before the cut off). Some of the wording is pretty terse in places (the first sentence), so it didn’t seem out of place to have “WARNING/2” in the description, hehe.