Rails - Dec 2005 - validate_uniqueness_of builds queries with IS NULL when value is nil (since RC 5)

Hi people,

Ever since RC 5 (including 1.0) my unit tests that test for inserting  
duplicate entries fail and throw errors. Each of them implements  
validate_uniqueness_of to prevent duplicates. While I also put in a  
ticket for this, I''m wondering if this is actually a defect or maybe  
intended behaviour afterall. If so, I won''t apply the patch again and  
look for another solution.

http://dev.rubyonrails.org/ticket/3143

Tell me, should I patch it? ;-)

Thanks,

Fabien