Don't switch back to rope/chute/jetpack if selected ammo is not ammoprop_AltUse
This fixes a regression like that you can't shoryuken after rope.
#include <QApplication>
#include "mainform.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyWindow *mainWin = new MyWindow;
mainWin->show();
return app.exec();
}