Object: Avoid error on emit_signal with freed target
Object: Avoid error on emit_signal with freed target

As advised by @reduz.

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