Fix crash when searching action map creates empty catagories
Fix crash when searching action map creates empty catagories

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