Fix directory recursion

Author: LexManos

config.cfg

@@ -5,4 +5,4 @@ net/minecraft/core/HolderSet java/util/function/Predicate<TT;>
 # Nested generic signatures
 net/minecraft/core/HolderSet test/AdvancedGenericInterface<Ljava/util/function/Predicate<TT;>;Ljava/lang/Integer;>
 # This will fail with invalid reference
-net/minecraft/core/HolderSet test/AdvancedGenericInterface<Ljava/util/function/Predicate<TB;>;Ljava/lang/Integer;>
+#net/minecraft/core/HolderSet test/AdvancedGenericInterface<Ljava/util/function/Predicate<TB;>;Ljava/lang/Integer;>

src/main/java/net/minecraftforge/facade/Main.java

@@ -132,7 +132,7 @@ private static void write(ZipOutputStream out, Set<String> seen, long time, Stri
             return;
 
         var idx = directory.lastIndexOf('/');
-        if (idx == -1)
+        if (idx != -1)
             write(out, seen, time, directory.substring(0, idx));
         seen.add(directory);