From: Evgeny Bokshitsky <e.bokshitskiy@hh.ru>
Date: Sat, 20 Sep 2025 17:37:18 +0000 (+0400)
Subject: ♻️ Create `dependency-cache` dict in `solve_dependencies` only if `None` (don't re... 
X-Git-Tag: 0.117.0~15
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c2c6049b8f021a5a0576599ed36af930490173b2;p=thirdparty%2Ffastapi%2Ffastapi.git

♻️ Create `dependency-cache` dict in `solve_dependencies` only if `None` (don't re-create if empty) (#13689)
---

diff --git a/fastapi/dependencies/utils.py b/fastapi/dependencies/utils.py
index d9f6bf2d7..8dd0a14c8 100644
--- a/fastapi/dependencies/utils.py
+++ b/fastapi/dependencies/utils.py
@@ -593,7 +593,8 @@ async def solve_dependencies(
         response = Response()
         del response.headers["content-length"]
         response.status_code = None  # type: ignore
-    dependency_cache = dependency_cache or {}
+    if dependency_cache is None:
+        dependency_cache = {}
     sub_dependant: Dependant
     for sub_dependant in dependant.dependencies:
         sub_dependant.call = cast(Callable[..., Any], sub_dependant.call)
@@ -630,7 +631,6 @@ async def solve_dependencies(
             embed_body_fields=embed_body_fields,
         )
         background_tasks = solved_result.background_tasks
-        dependency_cache.update(solved_result.dependency_cache)
         if solved_result.errors:
             errors.extend(solved_result.errors)
             continue