Comment 4 for bug 1039405

I've noticed that if ubiquity is using 2 swap files, then this bug will never occur.

It's also a known behavior of the swapoff function. See this comment:

http://unix.stackexchange.com/questions/45441/what-command-can-be-used-to-force-release-everything-in-swap-partition-back-to-m#comment62823_45443