From 86315bc8c229aeb81038af71b80594e8aa7aef29 Mon Sep 17 00:00:00 2001
From: Krasimir Angelov <kr.angelov@gmail.com>
Date: Tue, 5 Dec 2023 13:56:56 +0100
Subject: [PATCH] remove a premature optimization that caused problems

---
 src/runtime/c/pgf/phrasetable.cxx | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/runtime/c/pgf/phrasetable.cxx b/src/runtime/c/pgf/phrasetable.cxx
index ed0d6db6c..e4c6dc866 100644
--- a/src/runtime/c/pgf/phrasetable.cxx
+++ b/src/runtime/c/pgf/phrasetable.cxx
@@ -474,16 +474,12 @@ PgfPhrasetable phrasetable_delete(PgfPhrasetable table,
         PgfPhrasetable left = phrasetable_delete(table->left,
                                                  container, seq_index,
                                                  seq);
-        if (left == table->left)
-            return table;
         table = Node<PgfPhrasetableEntry>::upd_node(table,left,table->right);
         return Node<PgfPhrasetableEntry>::balanceR(table);
     } else if (cmp > 0) {
         PgfPhrasetable right = phrasetable_delete(table->right, 
                                                   container, seq_index,
                                                   seq);
-        if (right == table->right)
-            return table;
         table = Node<PgfPhrasetableEntry>::upd_node(table,table->left,right);
         return Node<PgfPhrasetableEntry>::balanceL(table);
     } else {