Double-clicking in an assessment causes "Access Denied" errors

Issue Description

When accessing an assessment, if the end user clicks on the next button while the red "Saving" icon is flashing the system will produce an access denied error message. This also will occur if the end user clicks the next button twice in a row. This is independent of browsers and OS.

For example:

Begin taking the test and do one of the following:
a. After clicking the "Save Answer" button and while the red "SAVING ANSWER" is on the screen, click the arrow for the next question.

or

b. Double click on the next question arrow without saving.

Expected Result: The next question is presented.
Unexpected Result: You encounter an "Access denied" error.

Workaround
There is no means to workaround the problem. A patch is being created for the affected builds.
The best thing to do is instruct your students to wait for the save to finish before clicking the next button.  Also, to click each button only one while taking a test.