Fixed #2469 -- Made the "drop index" constraint names match those we create in the first place.
Fixed #2469 -- Made the "drop index" constraint names match those we create in the first place.

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extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%403543

Belgabor/django,Belgabor/django,Belgabor/django