Not highlighting "and" and "or"?

[Walter Underwood]

Is there some special casing in the highlighter to skip query syntax words? The 
words “and” and “or” don’t get highlighted.

This is in 6.5.0.

       <str name="hl.fl">question</str>
       <str name="hl.encoder">html</str>
       <str name="hl.fragsize">440</str>
       <str name="hl.method">fastVector</str>
       <str name="hl.snippets">1</str>

wunder
Walter Underwood
wun...@wunderwood.org
http://observer.wunderwood.org/  (my blog)