gnome application launcher -- keeps running in background

[H.S.]

Hello,

I am trying out the application launcher in gnome. If I create an
application launcher that starts with a wget command, it starts of okay:
the gnome-terminal opens and wget starts working.

However, if I close that gnome terminal, wget appears to continue
running in the background. Isn't wget supposed to close when the
terminal window is closed?

Thanks.
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