ForgePatch/patches/minecraft/net/minecraft/util/text/LanguageMap.java.patch

--- a/net/minecraft/util/text/LanguageMap.java
+++ b/net/minecraft/util/text/LanguageMap.java
@@ -36,7 +36,8 @@
          field_201045_a.error("Couldn't read strings from /assets/minecraft/lang/en_us.json", (Throwable)ioexception);
       }
 
-      final Map<String, String> map = builder.build();
+      final Map<String, String> map = new java.util.HashMap<>(builder.build());
+      net.minecraftforge.fml.server.LanguageHook.captureLanguageMap(map);
       return new LanguageMap() {
          public String func_230503_a_(String p_230503_1_) {
             return map.getOrDefault(p_230503_1_, p_230503_1_);
@@ -54,6 +55,11 @@
          public String func_230504_a_(String p_230504_1_, boolean p_230504_2_) {
             return p_230504_1_;
          }
+         
+         @Override
+         public Map<String, String> getLanguageData() {
+            return map;
+         }
       };
    }
 
@@ -84,4 +90,7 @@
    public abstract boolean func_230505_b_();
 
    public abstract String func_230504_a_(String p_230504_1_, boolean p_230504_2_);
+   
+   // FORGE START
+   public Map<String, String> getLanguageData() { return ImmutableMap.of(); }
 }