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Q: 

simple captcha issue in ROR

I have the rails application, when i register the user i used simple captcha, the issue i faced is simple captcha stored image text value in database which is not equivalent to form display captcha value. so i couldn't submit the form even i typed the correct text. i found the problem root cause. but i don't know how to synchronize the db stored value and form display value? i don't know how to correct this issue.

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