Kévin Le Gouguec <kevin.legouguec@gmail.com> writes:

> 'buttonize' clobbers the help-echo property added by 'icon-string' ☹️
> That does make the current emoji extra-obscure, since hovering over it
> gives no clue as to what it does!
>
> Solutions:
>
> (a) display-warning could retrieve the property from the string returned
> by icon-string, then spoon-feeding it back to buttonize,
> (b) buttonize could check whether its STRING argument has a help-echo
> property before clobbering it with nil,
> (c) we invent a sentinel value for buttonize's HELP-ECHO argument to
> mean "psst, STRING already has the right help-echo property; use that".

See attached patches.  No intuition which is best; I guess (a) is the
least disruptive - no change in the semantics of 'buttonize'.

I wonder how critical we think finding a new graphical representation
for that button feels now, considering that once this is fixed,
mouse-hovering & C-h . will let users now what that button is for.