Log Browser: odd numbers appear when clicking on lines in DataTable

The DataTable display is showing odd numbers (perhaps numbers from other parts of the log) when I do this:

- open up a large log file
- filter the log by one of the messages, I was doing object avoidance testing so I filtered by the OABR message but I suspect any message will work
- graph an element from the message using the right-side selector
- click on a line in the data table. The numbers that were there are replaced with unrelated numbers, perhaps from some other part of the log


Reproduce the issue in the Log Browser/DataTable workflow: open a large log, filter by a message, graph an element with the right-side selector, and click a data-table line. Compare the displayed values before and after selection; done when clicking a line no longer replaces them with unrelated numbers.

Written by the indexing model from the issue text.