Re: ob-scheme haunted source code block?

[Joost Kremers <joostkremers@fastmail.fm>]

On Tue, Jan 21 2020, Neil Jerram wrote:
> OK, up to this point I am thinking: this is all quite curious, 
> but
> presumably not really a big problem, as you surely don't need to 
> use this
> rather strange workflow...

Mind you, that's not my normal workflow. I normally just do =C-'= 
to edit a source block, =C-'= to finish the edit and return to the 
Org file, and then =C-c C-c= to evaluate the source block. The 
rest was just to try and find out where the problem lies.

>> The weirdest thing about this is that the problem is 
>> persistent. I
>> restarted Emacs and in my desperation even rebooted the 
>> computer,
>> but to no avail.
>
> But this is indeed weird.  Are you saying that you can reboot 
> your
> computer, restart Emacs, open the relevant Org file, evaluate 
> the source
> block (without any C-c ') and you still see the problem?

Yes, that was what was happening. I suspected there might be some 
history being kept somewhere, that's why I grepped through my 
=~/.emacs.d/= directory.

> If so, I wonder if it's a real but intermittent problem in your 
> code that
> was somehow made more likely by the original workflow, and now 
> you're just
> being unlucky?

The code was fairly straightforward (and not even mine... It came 
directly from SICP), so I doubt that had much to do with it.

Anyway, I'm gonna have to put this down as a Heisenbug. The 
problem disappeared after a while and I can't reproduce it: Going 
through the steps that I thought triggered the bug doesn't 
recreate it. Weird.

Thanks for reading and apologies for wasting everyone's time...

Joost