bug#9419: 24.0.50; C-x k deletes the entire frame instead of switching to another buffer

[martin rudalics]

> So what we're trying to do here can be seen as a yet-weaker form of
> dedication which does not prevent the reuse of a buffer by
> display-buffer.

That would be a solution.  Just that it does not handle the case when a
window gets reused for displaying the buffer.  In particular, we would
have to also save/restore the dedicated status of such windows.

martin