#10466: quick fix for math challenge contact form on 403 error page

[jeromeroucou]

What this PR does / why we need it:

If a user wishes to access a page, but is prevented from doing so by a rights issue (ACL), the error message on page 403 indicates this. Actually, the form can no longer be submitted because the mathematical challenge is empty. This PR corrects this and makes it possible to submit this form again.

Which issue(s) this PR closes:

Closes #10466

Special notes for your reviewer:

I do a simple quick fix, I don't understand why the SendFeedbackDialog.initUserInput method isn't called. But with the new SPA interface, this bug will disappear, as it's linked to the current JSF view (view from MVC). So it seems to me that this is acceptable.

Suggestions on how to test this:

I use this test case to validate this PR :

• I login into a repository with a account A
• I create a collection and publish them
• Into this dataverse, I create a dataset in draft status
• I copy the URL of the dataset
• I logout and re-sigin with a another account B
• I try to access to the dataset previously created
• On the 403 page (forbidden access), I open the contact form to verify if the math challenge is now print

Does this PR introduce a user interface change? If mockups are available, please link/include them here:

No change

Is there a release notes update needed for this change?:

I don't think because the contact form on forbidden access page is a small functionality. But if needed I can write them.

Additional documentation:

No

[qqmyers]

Looks good. I tested the fix at QDR and it appears to work/ shows a valid math problem.

Note that the IT tests didn't run due to some problem launching the ec2 instance - presumably not related.

[pdurbin]

@cmbz @scolapasta can we prioritize this one?

[pdurbin]

I haven't tested this but it looks promising. Approved.