Subject: Re: bug#32990: 26.1.50; isearch-forward + t-m-m/mark-active doc

From: Juri Linkov <[email-masked]>
Date: Mon, 19 Nov 2018 00:42:35 +0200

>> 			 Currently clicking on the word "Isearch "
>> in the mode-line signals the error:
>> 
>> Debugger entered--Lisp error: (error #("Cannot find minor mode for ‘ Isearch’" ...
>>   signal(error (#("Cannot find minor mode for ‘ Isearch’" ...
>>   error("Cannot find minor mode for `%s'" #(" Isearch" ...
>>   minor-mode-menu-from-indicator(#(" Isearch" ...
>>   mouse-minor-mode-menu((down-mouse-1 ...
>>   funcall-interactively(mouse-minor-mode-menu ...
>>   call-interactively(mouse-minor-mode-menu nil nil)
>>   command-execute(mouse-minor-mode-menu)
>
> Maybe "debug-on-error" is on?

Yes, this backtrace is displayed when debug-on-error is on.
And when off, one-line error is displayed in the echo area.