Fix -Werror=maybe-uninitialized in GLES2 on release builds
Fix -Werror=maybe-uninitialized in GLES2 on release builds

Issue introduced in #28796.

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