From 52103483226649b971db28686a1511966f72cd65 Mon Sep 17 00:00:00 2001
From: Sagar Vora <16315650+sagarvora@users.noreply.github.com>
Date: Sat, 14 Jun 2025 01:48:17 +0530
Subject: [PATCH] perf: assume key to be table fieldname

---
 frappe/model/document.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/frappe/model/document.py b/frappe/model/document.py
index f5de9eb4c9..4ab103fd13 100644
--- a/frappe/model/document.py
+++ b/frappe/model/document.py
@@ -1982,8 +1982,8 @@ class LazyDocument:
 	@override
 	def append(self, key: str, value: D | dict | None = None, position: int = -1) -> D:
 		# Ensure that table descriptor is triggered at least once
-		if isinstance(key, str) and key in self._table_fieldnames:
-			getattr(self, key, None)
+		# key is assumed to be a table fieldname (as expected by BaseDocument.append)
+		getattr(self, key, None)
 		return super().append(key, value, position)
 
 	@override