PaperMC/nms-patches/CustomFunction.patch

--- a/net/minecraft/server/CustomFunction.java
+++ b/net/minecraft/server/CustomFunction.java
@@ -48,7 +48,7 @@
                 }
 
                 try {
-                    ParseResults<CommandListenerWrapper> parseresults = customfunctiondata.a().getCommandDispatcher().a().parse(stringreader, customfunctiondata.g());
+                    ParseResults<CommandListenerWrapper> parseresults = customfunctiondata.d().parse(stringreader, customfunctiondata.g()); // CraftBukkit
 
                     if (parseresults.getReader().canRead()) {
                         throw CommandDispatcher.a(parseresults);