Row counts are wrong in tome update text.

[billfreeman44]

A typical tome maker update looks like this: Tome Maker Update: hours_elapsed=0 hours_remaining=32 keys_complete=200 minutes_elapsed=6 minutes_remaining=1944 page_count=12 page_row_count=5816 page_size_mb=0.93182373046875 percent_complete=0.331

The page_row_count is clearly wrong during some recent tests. It most likely is using the value after a first dataframe is added after being reset.