OK having read the bug report I can see why it was closed, the behaviour you report is the default behaviour for any program launched from a terminal and has been for as long as I can remember. I just launched 9 programs from the terminal - 8 of them were killed by Ctl-c the only one that wasn't was gnome-terminal itself, but that is hardly surprising because it can't run itself inside itself, it is forced to launch a new instance and anyway it is not a graphical program it is a terminal. Xterm (which can be run from inside gnome-terminal) is shut down by Ctl-c. That is the way it is supposed to be.
If your bug is supposed to be about the copy/paste function then I can't duplicate it. Copying text from a browser launched from a terminal is retained in the clipboard and is able to be pasted once the browser has been closed by Ctl-c in the terminal.
Fujitsu Lifebook AH532 Laptop. Intel i5 processor, 6Gb ram, Intel HD3000 graphics, Intel Audio/wifi. Realtek RTL8111/8168B Ethernet.Ubuntu12.10 (Unity), Mint14 (Cinnamon), Manjaro (Xfce).