Captcha don't have page-specific check

[mtancoigne]

If i open a page A then a page B (same page as A), the captcha required on A is the one of B.

There should be a captcha id or something in the session, so the user can open multiple times the same page.

[hashmode]

I think its a good point, I will try to find some time to add this in the next week. Please feel free to make PR if you update it. thanks