From 7464b440c078794c0dec88c3a991e2c081695855 Mon Sep 17 00:00:00 2001
From: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Date: Sun, 18 Aug 2024 20:27:03 +1200
Subject: [PATCH] Revert "[validation] Allow ``maybe_simple_value`` to not have
 default key in complex value" (#7305)

---
 esphome/config_validation.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esphome/config_validation.py b/esphome/config_validation.py
index 6d6cb451d6..719cc43b31 100644
--- a/esphome/config_validation.py
+++ b/esphome/config_validation.py
@@ -1864,7 +1864,7 @@ def maybe_simple_value(*validators, **kwargs):
         if value == SCHEMA_EXTRACT:
             return (validator, key)
 
-        if isinstance(value, dict):
+        if isinstance(value, dict) and key in value:
             return validator(value)
         return validator({key: value})