File limit-error-messages.patch of Package python-pyparsing

From e0826a2ec69bc3cf71ba7ca7945774d9213d7d5e Mon Sep 17 00:00:00 2001
From: Kyle Sunden <git@ksunden.space>
Date: Wed, 5 Jul 2023 14:16:50 -0500
Subject: [PATCH] Limit error message overriding when

---
 pyparsing/core.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pyparsing/core.py b/pyparsing/core.py
index 8233f72c..bfbb391c 100644
--- a/pyparsing/core.py
+++ b/pyparsing/core.py
@@ -4547,7 +4547,8 @@ def parseImpl(self, instring, loc, doActions=True):
             try:
                 return self.expr._parse(instring, loc, doActions, callPreParse=False)
             except ParseBaseException as pbe:
-                pbe.msg = self.errmsg
+                if not isinstance(self, Forward) or self.customName is not None:
+                    pbe.msg = self.errmsg
                 raise
         else:
             raise ParseException(instring, loc, "No expression defined", self)