Fix 500 error when cloning a wiki using the Kerberos clone button

What does this MR do?

This MR fixes a 500 error when cloning a wiki using the Kerberos clone button. This error was caused by a view variable name that was changed in !47676 (diffs), but wasn't updated in the corresponding view. The error is fixed by changing the view variable name from project to container.

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Conformity

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Related to #325263 (closed)