bug#32850: 27.0.50; window-swap-states doesn't swap window prev/next-buffers

[martin rudalics]

> This means that in the same session non-writable states should be used
> instead of window configurations.

Just that the initial idea of states was that they are always
writable.

> And for saving to the desktop file,
> non-writable window states should be converted to writable window states.

Can you summarize why we would want non-writable states to replace
window configurations?

martin