Righty; I didn't want to create any extra noise. New ticket, ho.

arcanist: ade25facfdf22aed1c1e20fed3e58e60c0be3c2b
libphutil: 9d85dfab0f532d50c2343719e92d574a4827341b
phabricator: 2d4eb460abb2ba34a944962c7cfea5741e099ff9

Getting another instance of what looks to be a similar issue but for a different function, specifically

Oh. No - no it doesn't.

OK, after removing the custom logo (even though it's Public) I can't replicate any more.

Same file.

Well, the fact that the logo isn't restricted:

Um. That's a different bug to the one I'm reporting. The custom logo I have set is visible to Public.

Ick. I could replicate it three times with those steps (without typing into the comment box - only a click; I need to check what happens with typing). I wonder if it needs a service restart somewhere in the mix (my update script is in Q528). Let me do some more testing.