From c97b736a5beffda6a8eac97d51cb9c595cbbfe38 Mon Sep 17 00:00:00 2001
From: krangelov <kr.angelov@gmail.com>
Date: Thu, 12 Aug 2021 10:41:23 +0200
Subject: [PATCH] fix the reading of expressions

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

diff --git a/src/runtime/c/pgf/reader.cxx b/src/runtime/c/pgf/reader.cxx
index eb591b5df..3ecfdee31 100644
--- a/src/runtime/c/pgf/reader.cxx
+++ b/src/runtime/c/pgf/reader.cxx
@@ -281,7 +281,7 @@ PgfExpr PgfReader::read_expr()
 		throw pgf_error("Unknown expression tag");
 	}
 
-    return 0;
+    return expr;
 }
 
 void PgfReader::read_hypo(ref<PgfHypo> hypo)