PHP warnings and a wrong redirect when submitting a Toolset form from a Views WordPress Archive page

Symptoms

There is an issue when submitting Toolset forms from a Views WordPress Archive page.

The issue happens if the form is configured to display the post after the submission.

When submitting the form, it does not redirect to the post and shows PHP warnings similar to the following:

Warning: urlencode() expects parameter 1 to be string

Workaround