BUG: press twice f1

[Roland Illig]

Roland Illig wrote:
> Vitja Makarov wrote:
> 
>> Hi, all!
>>
>> When I press f1 twice I mc receives sig11. The problem is in help_show():
> 
> 
> Fixed in HEAD. Will port that to PRE, too.

It does not occur in PRE, because the "[How to use help]" node is always 
found there. In HEAD it was not found because I had been sloppy when 
doing "trivial changes". I had not seen the global variable "data" when 
introducing a parameter of the same name. :(

Roland