Fixed #28885 -- Fixed hidden content at the bottom of the "The install worked successfully!" page for some languages.

Unused since b4492a8c.

This isn't relevant for beginners.

Thanks oTree-org for the suggestion.

Fixed #28859 -- Made Oracle backend raise DatabaseError if "no data found" exception is hidden by the Oracle OCI library.

Thanks Tim Graham for the review and Jani Tiainen for the report.

Thanks avalanchy for the initial patch.

Also fixed #28608 -- Allowed UserCreationForm and UserChangeForm to
work with custom user models.

Thanks Sagar Chalise and Rômulo Collopy for reports, and Tim Graham
and Tim Martin for reviews.

Fixed #28517 -- Fixed admin delete confirmation view crash when related models don't have a delete permission.