bug#43397: 28.0.50; Adding tool bar items: update tool bar

[Lars Ingebrigtsen]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

> Of course, it's the use of the minibuffer (as part of `M-:`) which
> triggered it.

No, I'm able to trigger the appearance of the icon by just `C-x C-e'-ing
after:

(garbage-collect)

`C-x C-e' after 

(progn
  (garbage-collect)
  nil)

does not trigger it.

This triggers it:

(progn
  (garbage-collect)
  (message "Foo\nfoo\nbar")
  nil)

This does not:

(progn
  (message "Foo\nfoo\nbar")
  nil)

So: We have to have a garbage-collect, and then we have to have
something that changes the size of the minibuffer area (which probably
triggers a more complete repaint)...

-- 
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   bloggy blog: http://lars.ingebrigtsen.no