Re: master 8a88f3ed5ae: Add `outline-occur' command and `display-buffer-default-alist' variable

 > I tend to think it is best to keep `display-buffer-overriding-action'
 > operational forever, to avoid breaking anything.

Yes.  We have no other choice.

 > Is there any actual benefit
 > to be obtained by getting rid of that?  Or is the only benefit a kind
 > of notional simplicity?

Adding yet another variable with similar semantics increases operational
complexity, mostly for users who then have to keep in mind that there's
yet another operator that could affect the outcome of 'display-buffer'.

martin