Illegal chars on import narrative from DPF (XML)

[IanMayo]

An analyst created a Debrief plot, containing track and narrative data. He saved and closed the plot.

When he re-opened the plot, he got XML warnings, like:
Character reference "&#11" is an invalid XML character.

The document had around 200 instances of this character sequence.

Using a text editor he replaced those instances with a space, and the file loaded correctly.

It's a surprise that a new issue arose with XML import, since it's relatively mature code. The change in data may have been associated with the introduction of Pepys into the tool-chain.

Debrief should not save invalid XML characters to file when it saves to DPF.

I don't think we can overcome the issue on import, since the warning is probably thrown in the low-level XML parsing, before control gets to our handlers.