Regular text is being masked in the log

There are a number of places in the log where this occurs including the start and ending task messages. In this case the task description is CLI integration automation. Other places in the log also have the text automation masked. Now it just so happens automation is a password. What is going on?

19-Jan-2016 12:09:52	Starting task 'CLI integration ********' of type
19-Jan-2016 12:09:52	Finished task 'CLI integration ********' with result: Success

This did not happen on any previous Bamboo release including 5.9.x.

By the way, this actually exposes the password to anyone who can see the log and determine the text that is being masked. Not that important in this case, but, don't know what the logic is that is doing the masking.