Re: bug/feature - emacs doesn't tell you about keys with multiple prefixes

[Stefan Monnier]

> The new code has a bug: it finds just the last occurrence of the same
> keymap and tests whether the prefix for that occurrence is an initial
> segment.  What if the last occurrence isn't but another occurrence is?
> In that case, it won't detect the cycle.  I suspect that when M-a,
> M-b, and M-a M-b are the same keymap, this code won't compare the M-a
> with the M-a M-b.
> 
> It can't use rassq now; it has to check each previous occurrence of the same
> keymap.

Huh?! That's exactly what the code does.  I verified it correcly
breaks such cycles before posting the message.
And there's even a comment about it.


        Stefan