vfs-test: hard link should return the same inode

Acked-by: Lea Morschel
Acked-by: Albert Rossi
Target: master

core/src/test/java/org/dcache/nfs/vfs/DummyVFS.java

@@ -262,9 +262,7 @@ public class DummyVFS implements VirtualFileSystem {
             throw new ServerFaultException("Failed to create: " + e.getMessage(), e);
         }
 
-        long newInodeNumber = fileId.getAndIncrement();
-        map(newInodeNumber, targetPath);
-        return toFileHandle(newInodeNumber);
+        return existing;
     }
 
     @Override