Fixed #1218 -- Improved model validator to complain for non True/False values for 'db_index' parameter
Fixed #1218 -- Improved model validator to complain for non True/False values for 'db_index' parameter

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@1966 bcc190cf-cafb-0310-a4f2-bffc1f526a37

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