diff -r -U 3 minecraft\net\minecraft\client\renderer\block\model\Variant.java minecraft_patched\net\minecraft\client\renderer\block\model\Variant.java
--- minecraft\net\minecraft\client\renderer\block\model\Variant.java
+++ minecraft_patched\net\minecraft\client\renderer\block\model\Variant.java
@@ -59,7 +59,7 @@
    public int hashCode() {
       int i = this.field_188050_a.hashCode();
       i = 31 * i + this.field_188051_b.hashCode();
-      i = 31 * i + this.field_188052_c.hashCode();
+      i = 31 * i + Boolean.valueOf(this.field_188052_c).hashCode();
       i = 31 * i + this.field_188053_d;
       return i;
    }
