From 35d6a120748ea0a2e06f8a0e884d99a7daf000d5 Mon Sep 17 00:00:00 2001
From: Krasimir Angelov <kr.angelov@gmail.com>
Date: Fri, 7 Oct 2022 23:30:26 +0200
Subject: [PATCH] fix a space leak

---
 src/runtime/c/pgf/expr.cxx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/runtime/c/pgf/expr.cxx b/src/runtime/c/pgf/expr.cxx
index e000cf2c8..eb156a84a 100644
--- a/src/runtime/c/pgf/expr.cxx
+++ b/src/runtime/c/pgf/expr.cxx
@@ -855,11 +855,15 @@ error:
 		       token_tag != PGF_TOKEN_COMMA &&
 		       token_tag != PGF_TOKEN_SEMI &&
 		       token_tag != PGF_TOKEN_UNKNOWN) {
+			PgfExpr fun = expr;
 			PgfExpr arg = parse_arg();
 			if (arg == 0)
 				return expr;
 
-            expr = u->eapp(expr, arg);
+            expr = u->eapp(fun, arg);
+
+            u->free_ref(fun);
+            u->free_ref(arg);
 		}
 
 		return expr;