From 03950f270a92f4d7ceb608512156ff0c87f2329d Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Fri, 25 Apr 2025 15:12:55 -1000
Subject: [PATCH] Remove lower call in async_reserve (#143682)

async_reserve is only called from the the entity_platform helper
which already ensures the entity_id is validated and in lower
case.
https://github.com/home-assistant/core/blob/a783b6a0abda02b26e193356c4f3db8b86e13b86/homeassistant/helpers/entity_platform.py#L936
---
 homeassistant/core.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/homeassistant/core.py b/homeassistant/core.py
index 65f3b7502a5..9c5d32934a8 100644
--- a/homeassistant/core.py
+++ b/homeassistant/core.py
@@ -2234,7 +2234,6 @@ class StateMachine:
         This avoids a race condition where multiple entities with the same
         entity_id are added.
         """
-        entity_id = entity_id.lower()
         if entity_id in self._states_data or entity_id in self._reservations:
             raise HomeAssistantError(
                 "async_reserve must not be called once the state is in the state"