bug#810: 23.0.60; atomic-change-group narrowing problem

[martin rudalics]

> When using atomic-change-group I got the message
>
>   undo-more: Changes to be undone are outside visible portion of buffer

This message is usually a consequence of narrowing the buffer within the
body of `atomic-change-group' or afterwards.

> The changes are also not undone. This seems wrong to me.

If you did narrow the buffer this is normal and not specific to
`atomic-change-group'.

martin