Comment 2 for bug 259930

Same thing still happens.

Here's how I test.

Open two tabs.
In tab #1, cp ~/test/15_GB_File ~/test/Another_File
In tab #2, watch du -h ~/test/*
Close tab #1

The watch will show you that the file is still growing.

I tried both methods of closing the terminal.

I know it's with gnome-terminal and not my laptop. I've seen this happen on other systems as well.