Fixed vertex color initialization with default value in gles3
Fixed vertex color initialization with default value in gles3

Fixes #30275, #31250

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