* What led up to the situation?

On Writer, when one works on a document with other people, anyone can add comments.
Moreover, it's possible to enable the "changes log", to follow the changes.
It results that when anyone adds, removes, dhanges something, the change is not
done, but colorized differently. To do it, the user needs accept, but can
refuse the change.

   * What exactly did you do (or not do) that was effective (or
     ineffective)?

Orca reads the text, even removed, without mentioning its status. To read comments,
we need the XML release to see <!-- tag.

   * What was the outcome of this action?

Orca is unable to read the changes related to revision change log.

   * What outcome did you expect instead?

Orca should say, while the focus is on a text, if it's added, removed, by which
user. It should also speak the comments.