DOMDocument::importNode(): ID link-type-settings-wrapper already defined

Problem/Motivation

In FlagConfirmFormTest, the following exception is thrown:

DOMDocument::importNode(): ID link-type-settings-wrapper already defined

The flag edit form uses a div to contain the link type portion of the form. This part of the form is updated using AJAX when selecting the link type. The form appears to update correctly when using manual testing, but throws an exception in simpletest.

Proposed resolution

Not sure yet.

Remaining tasks

Determine the cause for the error.
Create patch.

User interface changes

None.

API changes

None.