From 3d89d74bdcd5afb85408ebb67a672701579f4efc Mon Sep 17 00:00:00 2001
From: benedikt-bartscher
 <31854409+benedikt-bartscher@users.noreply.github.com>
Date: Mon, 9 Dec 2024 10:00:01 +0100
Subject: [PATCH] only mark backend vars as dirty if they have changed (#4494)

---
 reflex/state.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/reflex/state.py b/reflex/state.py
index 55f29cf45..f38b9c863 100644
--- a/reflex/state.py
+++ b/reflex/state.py
@@ -1288,6 +1288,9 @@ class BaseState(Base, ABC, extra=pydantic.Extra.allow):
             return
 
         if name in self.backend_vars:
+            # abort if unchanged
+            if self._backend_vars.get(name) == value:
+                return
             self._backend_vars.__setitem__(name, value)
             self.dirty_vars.add(name)
             self._mark_dirty()