Not sure if it's a bug or user error (not sure if writing is supposed to be supported yet), but after doing the following, the page becomes nonresponsive: :o t

Not sure if it's a bug or user error (not sure if writing is supposed to be supported yet), but after doing the following, the page becomes nonresponsive: :o test.tx :wq I get an fsync failed error and I'm told to press enter or type a command to continue. I can't do either.