Disable blending after drawing stage debug.
Disable blending after drawing stage debug.

closes #5490

alex-dorokhov/libgdx,libgdx/libgdx,libgdx/libgdx,NathanSweet/libgdx,libgdx/libgdx,cypherdare/libgdx,MikkelTAndersen/libgdx,alex-dorokhov/libgdx,stinsonga/libgdx,alex-dorokhov/libgdx,cypherdare/libgdx,Zomby2D/libgdx,MikkelTAndersen/libgdx,NathanSweet/libgdx,MikkelTAndersen/libgdx,NathanSweet/libgdx,alex-dorokhov/libgdx,tommyettinger/libgdx,Zomby2D/libgdx,stinsonga/libgdx,bladecoder/libgdx,MikkelTAndersen/libgdx,bladecoder/libgdx,stinsonga/libgdx,cypherdare/libgdx,tommyettinger/libgdx,bladecoder/libgdx,NathanSweet/libgdx,NathanSweet/libgdx,tommyettinger/libgdx,cypherdare/libgdx,tommyettinger/libgdx,MikkelTAndersen/libgdx,tommyettinger/libgdx,stinsonga/libgdx,alex-dorokhov/libgdx,Zomby2D/libgdx,cypherdare/libgdx,MikkelTAndersen/libgdx,libgdx/libgdx,Zomby2D/libgdx,Zomby2D/libgdx,alex-dorokhov/libgdx,MikkelTAndersen/libgdx,alex-dorokhov/libgdx,MikkelTAndersen/libgdx,stinsonga/libgdx,bladecoder/libgdx,bladecoder/libgdx,libgdx/libgdx,alex-dorokhov/libgdx