From ba19ff1f637ac59186f86215de61a3d779449f3c Mon Sep 17 00:00:00 2001
From: Krasimir Angelov <kr.angelov@gmail.com>
Date: Thu, 21 Dec 2023 11:17:45 +0100
Subject: [PATCH] bugfix

---
 src/runtime/c/pgf/parser.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/runtime/c/pgf/parser.cxx b/src/runtime/c/pgf/parser.cxx
index 354a2a183..a7028648b 100644
--- a/src/runtime/c/pgf/parser.cxx
+++ b/src/runtime/c/pgf/parser.cxx
@@ -752,7 +752,7 @@ void PgfLRTableMaker::predict(State *state, Fold fold, Item *item, ref<PgfText>
                 return true;
             };
         probspace_iter(abstr->funs_by_cat, cat, f, false);
-    } else {
+    } else if (ccat->prods.size() > 0) {
         Item *new_item = new(item,ccat,lin_idx) Item;
         process(state,fold,new_item);
     }