Add missing validations
Add missing validations

Add missing validations to prevent crash of multiple mouse buttons being
pressed

vkbsb/godot,DmitriySalnikov/godot,MarianoGnu/godot,akien-mga/godot,Valentactive/godot,godotengine/godot,josempans/godot,ex/godot,groud/godot,sanikoyes/godot,akien-mga/godot,BastiaanOlij/godot,honix/godot,josempans/godot,ZuBsPaCe/godot,godotengine/godot,okamstudio/godot,BastiaanOlij/godot,godotengine/godot,vkbsb/godot,guilhermefelipecgs/godot,godotengine/godot,vkbsb/godot,Shockblast/godot,okamstudio/godot,groud/godot,firefly2442/godot,sanikoyes/godot,DmitriySalnikov/godot,vkbsb/godot,Faless/godot,DmitriySalnikov/godot,DmitriySalnikov/godot,vnen/godot,DmitriySalnikov/godot,Faless/godot,okamstudio/godot,okamstudio/godot,Paulloz/godot,Valentactive/godot,Valentactive/godot,vnen/godot,okamstudio/godot,DmitriySalnikov/godot,Faless/godot,sanikoyes/godot,josempans/godot,Shockblast/godot,godotengine/godot,guilhermefelipecgs/godot,Shockblast/godot,okamstudio/godot,groud/godot,ZuBsPaCe/godot,MarianoGnu/godot,Valentactive/godot,pkowal1982/godot,ZuBsPaCe/godot,Shockblast/godot,akien-mga/godot,vnen/godot,Shockblast/godot,guilhermefelipecgs/godot,honix/godot,josempans/godot,guilhermefelipecgs/godot,josempans/godot,firefly2442/godot,akien-mga/godot,Faless/godot,ZuBsPaCe/godot,guilhermefelipecgs/godot,vkbsb/godot,pkowal1982/godot,vnen/godot,Zylann/godot,Valentactive/godot,pkowal1982/godot,Zylann/godot,Shockblast/godot,Shockblast/godot,honix/godot,akien-mga/godot,okamstudio/godot,Paulloz/godot,pkowal1982/godot,guilhermefelipecgs/godot,Valentactive/godot,honix/godot,BastiaanOlij/godot,Paulloz/godot,sanikoyes/godot,Faless/godot,BastiaanOlij/godot,vnen/godot,sanikoyes/godot,Zylann/godot,sanikoyes/godot,Paulloz/godot,Faless/godot,BastiaanOlij/godot,groud/godot,ex/godot,BastiaanOlij/godot,groud/godot,firefly2442/godot,pkowal1982/godot,godotengine/godot,firefly2442/godot,Paulloz/godot,sanikoyes/godot,MarianoGnu/godot,Paulloz/godot,ex/godot,ex/godot,MarianoGnu/godot,BastiaanOlij/godot,vnen/godot,okamstudio/godot,Paulloz/godot,Zylann/godot,ex/godot,josempans/godot,josempans/godot,honix/godot,DmitriySalnikov/godot,okamstudio/godot,josempans/godot,ex/godot,vnen/godot,ZuBsPaCe/godot,Shockblast/godot,guilhermefelipecgs/godot,vkbsb/godot,vkbsb/godot,MarianoGnu/godot,Zylann/godot,firefly2442/godot,pkowal1982/godot,ZuBsPaCe/godot,ZuBsPaCe/godot,akien-mga/godot,Faless/godot,guilhermefelipecgs/godot,Faless/godot,akien-mga/godot,Zylann/godot,firefly2442/godot,Valentactive/godot,ex/godot,akien-mga/godot,Zylann/godot,sanikoyes/godot,firefly2442/godot,MarianoGnu/godot,Valentactive/godot,ex/godot,pkowal1982/godot,godotengine/godot,pkowal1982/godot,Zylann/godot,groud/godot,vkbsb/godot,godotengine/godot,BastiaanOlij/godot,ZuBsPaCe/godot,vnen/godot,firefly2442/godot,honix/godot,MarianoGnu/godot,okamstudio/godot,MarianoGnu/godot