Merge pull request #14214 from RedWolfie/glass

[Bugfix] Fixes shotglasses

code/modules/food_and_drinks/drinks/drinks/shotglass.dm

@@ -7,6 +7,7 @@
 	materials = list(MAT_GLASS=100)
 	var/light_intensity = 2
 	light_color = LIGHT_COLOR_LIGHTBLUE
+	resistance_flags = FLAMMABLE
 
 /obj/item/reagent_containers/food/drinks/drinkingglass/shotglass/on_reagent_change()
 	if(!isShotFlammable() && (resistance_flags & ON_FIRE))
@@ -30,6 +31,7 @@
 		overlays += filling
 		name = "shot glass of " + reagents.get_master_reagent_name() //No matter what, the glass will tell you the reagent's name. Might be too abusable in the future.
 		if(resistance_flags & ON_FIRE)
+			cut_overlay(GLOB.fire_overlay, TRUE)
 			overlays += "shotglass_fire"
 			name = "flaming [name]"
 	else