If you change the contents of the last row in the table at
https://test2.wikipedia.org/w/index.php?title=Private_Practice&oldid=56640
from "n-Perfluoro-Pentan C5F12" to e.g. "n-Perfluoropentan C5F12", <nowiki> escaping is added seemingly unnecessarily. My guess is that it's overeagerly trying to prevent a new table row (|-) from being started.
Version: unspecified
Severity: normal