Clicking on folded nrepl dicts in the messages buffer results in an error

[bbatsov]

We had this problem in the past, but @Malabarba fixed it. Guess we've got a regression.

[bbatsov]

Just verified the old fix is here https://github.com/clojure-emacs/cider/blob/master/nrepl-client.el#L1287

I'm at a loss...

[bbatsov]

Just consulted the docs:

Perform the action specified by a button at location pos. pos may be either a buffer position or a mouse-event. If use-mouse-action is non-nil, or pos is a mouse-event (see Mouse Events), try to invoke the button’s mouse-action property instead of action; if the button has no mouse-action property, use action as normal. pos defaults to point, except when push-button is invoked interactively as the result of a mouse-event, in which case, the mouse event’s position is used. If there’s no button at pos, do nothing and return nil, otherwise return t.

Seems our code is correct, but for some reason the mouse-action is not registered at all.

[Malabarba]

It might be an emacs bug. I'll try to reproduce on 25.1 tomorrow.

[bbatsov]

Yeah, maybe. That'd be fun. :-)

[Malabarba]

Ok, it's definitely an Emacs bug that only happens for overlay-buttons with display properties. I've filed it upstream.

[bbatsov]

Any workaround ideas?

[Malabarba]

Yeah, I was working on it. Can't believe I spent half an hour on this. This is really one of Emacs dark corners. :P