Bug: RSS Feed breaks on certain character

Question

This page contains the following errors:

error on line 67 at column 8: PCDATA invalid Char value 20

Below is a rendering of the page up to the first error.

Line 67 from the RSS feed:

x + 2y <= 16<br />

 

HTML from the question:

<DIV CLASS="entry-content">Gegeben ist das lineare Optimierungsproblem<br />
max x + y<br />
x + 2y  &lt;= 16<br />
2x + y  &gt;= 12<br />
x + 2y &gt;= 2<br />
x, y &gt;= 0<br />

...

From the question displayed:

x + 2y <= 16
2x + y <= 12
x + 2y >= 2
x, y >= 0

Pasted this in Notepad which gives me a strange:

x + 2y <= 16
2x + y DC4 <= 12
x + 2y >= 2
x, y >= 0

anyone has an idea how to solve this bug for the next occurence?

// RSS feed now works again, I removed "DC4" from the question.

Comments

DC4 - device control 4
SCI_GETCONTROLCHARSYMBOL
http://www.scintilla.org/ScintillaDoc.html

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Will look into it for Q2A 1.6.