fix: missing shared color in mixed timeseries (#27403)

(cherry picked from commit 9ced2552db)

tests/unit_tests/security/api_test.py

@@ -28,4 +28,8 @@ def test_csrf_not_exempt(app_context: None) -> None:
     """
     Test that REST API is not exempt from CSRF.
     """
-    assert csrf._exempt_blueprints == {"MenuApi", "SecurityApi", "OpenApi"}
+    assert {blueprint.name for blueprint in csrf._exempt_blueprints} == {
+        "MenuApi",
+        "SecurityApi",
+        "OpenApi",
+    }