Reference file having the same filename as its associated test

Peter,

http://test.csswg.org/shepherd/testcase/text-combine-upright-line-breaking-rules-001/

http://test.csswg.org/shepherd/reference/text-combine-upright-line-breaking-rules-001/

[src]
http://test.csswg.org/source/css-writing-modes-3/text-combine-upright-line-breaking-rules-001.html

[src]
http://test.csswg.org/source/css-writing-modes-3/reference/text-combine-upright-line-breaking-rules-001.html


Is there a problem with a reference file that has the same filename as 
its associated test?

Personally, I thought this was bad (and I still think it is bad)... but 
I can't find anything in the documentation about this precise filename 
scenario.

+CC: Koji Ishii

Gérard
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