The test run custom fields are not inserted in the test run after creating or adding a test execution to tests via Test Repository and instead, the memento message is displayed

Short Description: The test run custom fields are not inserted in the test run after creating or adding a test execution to tests via Test Repository and instead, the memento message is displayed.

Steps to Reproduce:

1 - Create a new test run custom field in a project.

2 - Navigate to the test repository of that project, select the type of test associated to the custom field and create a test execution or add an existent one.

3 - Navigate to it and then open the test run page.

Actual Results: The memento message is displayed instead of the test run custom field.

Expected Results: The test run custom field should be inserted right away.