When editing in Rich Text mode, a user may enter multiple underscores on either side of a sequence of non-underscore, non-space characters. The Rich Text editor does not escape all underscores, resulting in one set of underscores being incorrectly interpreted as wiki markup for italics.

Each _ in Rich Text mode should be individually escaped with a preceding \ character.

For example the rich text _TEXT_ is currently parsed into wiki markup as _TEXT_ and incorrectly rendered as TEXT with the text in italics. It should instead be parsed as __TEXT__ to ensure it is correctly rendered.

Note that TEXT is escaped correctly.