Gwibber Ought to Remember a Draft of My Status Update

Whether I use the "Update Status" feature in the Unity Messaging Menu or the status updater builtin to Gwibber (which seems to be the same thing), any click outside the dialog dismisses the dialog and dumps the entered text.

I'm okay with the former action, but not the latter. I see no reason that Gwibber couldn't maintain a buffer of the text at least until the service ends. It's irritating that a single click can ruin a well-crafted post.