diff --git a/frappe/__init__.py b/frappe/__init__.py
index fd914a25ff..992a7c41f4 100644
--- a/frappe/__init__.py
+++ b/frappe/__init__.py
@@ -1416,38 +1416,42 @@ def setup_module_map(include_all_apps: bool = True) -> None:
 	:return: Nothing
 	"""
 	if include_all_apps:
-		local.app_modules = cache.get_value("app_modules")
+		app_modules = cache.get_value("app_modules")
 	else:
-		local.app_modules = client_cache.get_value("installed_app_modules")
+		app_modules = client_cache.get_value("installed_app_modules")
+
+	if not app_modules:
+		app_modules = {}
 
-	if not local.app_modules:
-		local.app_modules = {}
 		if include_all_apps:
 			apps = get_all_apps(with_internal_apps=True)
 		else:
 			apps = get_installed_apps(_ensure_on_bench=True)
 
 		for app in apps:
-			local.app_modules.setdefault(app, [])
+			app_modules.setdefault(app, [])
 			for module in get_module_list(app):
 				module = scrub(module)
-				local.app_modules[app].append(module)
+				app_modules[app].append(module)
 
 		if include_all_apps:
-			cache.set_value("app_modules", local.app_modules)
+			cache.set_value("app_modules", app_modules)
 		else:
-			client_cache.set_value("installed_app_modules", local.app_modules)
+			client_cache.set_value("installed_app_modules", app_modules)
 
 	# Init module_app (reverse mapping)
-	local.module_app = {}
-	for app, modules in local.app_modules.items():
+	module_app = {}
+	for app, modules in app_modules.items():
 		for module in modules:
-			if module in local.module_app:
+			if module in module_app:
 				warnings.warn(
-					f"WARNING: module `{module}` found in apps `{local.module_app[module]}` and `{app}`",
+					f"WARNING: module `{module}` found in apps `{module_app[module]}` and `{app}`",
 					stacklevel=1,
 				)
-			local.module_app[module] = app
+			module_app[module] = app
+
+	local.app_modules = app_modules
+	local.module_app = module_app
 
 
 def get_file_items(path, raise_not_found=False, ignore_empty_lines=True):