Invert the check for whether to clip the pick
Invert the check for whether to clip the pick

In 965907deb3f9e the picking was changed to render the full stage
instead of a single pixel whenever picking is performed more than once
between paints. However the condition in the if-statement was
backwards so it would end up always doing a full stage render.

GNOME/clutter,GNOME/clutter,Distrotech/clutter,Distrotech/clutter,dlespiau/clutter,dlespiau/clutter,Distrotech/clutter,ebassi/clutter,heysion/clutter-clone,ebassi/clutter,djdeath/clutter,GNOME/clutter,djdeath/clutter-android,djdeath/clutter,djdeath/clutter-android,jigpu/clutter,kerrickstaley/clutter-vala,djdeath/clutter,djdeath/clutter-android,kerrickstaley/clutter-vala,jigpu/clutter,ebassi/clutter,nobled/clutter,collects/clutter,nobled/clutter,Distrotech/clutter,heysion/clutter-clone,djdeath/clutter-multithreaded,djdeath/clutter-android,heysion/clutter-clone,GNOME/clutter,Distrotech/clutter,djdeath/clutter-android,collects/clutter,djdeath/clutter-multithreaded,Distrotech/clutter,collects/clutter,spatulasnout/clutter,collects/clutter,spatulasnout/clutter,jigpu/clutter,collects/clutter,jigpu/clutter,dlespiau/clutter,spatulasnout/clutter,kerrickstaley/clutter-vala,GNOME/clutter,heysion/clutter-clone,djdeath/clutter,djdeath/clutter-multithreaded,heysion/clutter-clone,spatulasnout/clutter,ebassi/clutter,kerrickstaley/clutter-vala,djdeath/clutter-multithreaded,djdeath/clutter,djdeath/clutter,jigpu/clutter,spatulasnout/clutter,nobled/clutter,ebassi/clutter,jigpu/clutter