also redefine moreblocks' empty bookshelf in a similar manner

homedecor_3d_extras/depends.txt

@@ -1 +1,3 @@
 default
+moreblocks?
+

homedecor_3d_extras/init.lua

@@ -55,3 +55,28 @@ minetest.override_item("default:bookshelf", {
 		}
 	}
 })
+
+minetest.override_item("moreblocks:empty_bookshelf", {
+	drawtype = "nodebox",
+	tiles = {
+		"3dbookshelf_top.png",
+		"3dbookshelf_bottom.png",
+		"3dbookshelf_sides.png",
+		"3dbookshelf_sides.png",
+		"3dbookshelf_fb_empty.png",
+		"3dbookshelf_fb_empty.png"
+	},
+	paramtype = "light",
+	paramtype2 = "facedir",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-0.5, -0.5, -0.1875, 0.5, 0.5, 0.1875}, -- NodeBox1
+			{-0.5, -0.5, -0.5, -0.4375, 0.5, 0.5}, -- NodeBox2
+			{0.4375, -0.5, -0.5, 0.5, 0.5, 0.5}, -- NodeBox3
+			{-0.5, 0.4375, -0.5, 0.5, 0.5, 0.5}, -- NodeBox4
+			{-0.5, -0.5, -0.5, 0.5, -0.4375, 0.5}, -- NodeBox5
+			{-0.5, -0.0625, -0.5, 0.5, 0.0625, 0.5}, -- NodeBox6
+		}
+	}
+})