[template-glib] expr-parser: fix symlist reuse

[Christian Hergert <chergert src gnome org>]

commit 1aadfa7453136ced4cd64827bf3d68dc3d6e28e2
Author: Christian Hergert <chergert redhat com>
Date:   Wed May 4 13:02:04 2022 -0700

    expr-parser: fix symlist reuse

 src/tmpl-expr-parser.y | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/tmpl-expr-parser.y b/src/tmpl-expr-parser.y
index d8c11eb..033fbf4 100644
--- a/src/tmpl-expr-parser.y
+++ b/src/tmpl-expr-parser.y
@@ -219,7 +219,8 @@ symlist: NAME {
     g_ptr_array_add ($$, $1);
   }
   | NAME ',' symlist {
-    g_ptr_array_insert ($3, 0, $1);
+    $$ = $3;
+    g_ptr_array_add ($$, $1);
   }
 ;