Summary

Using "diff" Syntax Highlighting on the code block, it wrongly highlights a new line after a "" if there's no character at the "" line

Steps to Reproduce

1. Insert a Code Block macro;
2. Select diff language
3. Insert the text below:

   + This should be highlighted
   + This too
   +
   This not
   and this not

Expected Results

The text "This not" shouldn't be highlighted

Actual Results

The new line is highlighted:

Workaround

Add a space character at the line with the "+"