Keep rope/jetpack/parachute selected when destroyed and having secondary ammo selected
Assumption: You rope with secondary ammo selected. You miss a shot,
destroying the rope gear.
Previous behaviour: Rope gets deselected and the secondary
ammo gets selected, you can no longer rope. Very annoying,
reason of many Shoppa fails!
New behaviour: Rope stays selected, but selection of secondary ammo
is cleared (because rope gear got destroyed). Makes much more
sense overall.
Analog for jetpack and parachute.
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