I'm seeing strange behavior where, when you search via keyword in CHM output, multiple versions of the same topic appear in the search results. See the screen captures below. In this example, I've edited the content in this topic. However, when I search for a keyword that appears in that topic, both the old (previous) and new (revised) topics appear in the search results.
Old topic:

New, revised topic:

How do I stop the old versions of these topics from appearing in the search results?
Thanks,
Todd