Fix plotly#2

Author: AnnMarieW

CHANGELOG.md

@@ -5,6 +5,8 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 ## Unreleased
 
 ### Fixed
+
+- [#2087](https://github.com/plotly/dash/pull/2087) Fix bug [#2086](https://github.com/plotly/dash/issues/2086) in which using id as a key within a component's id breaks the new callback context's args_grouping function.
 - [#2084](https://github.com/plotly/dash/pull/2084) In dash 2.5.0, a default viewport meta tag was added as recommended for mobile-optimized sites by [mdn](https://developer.mozilla.org/en-US/docs/Web/HTML/Viewport_meta_tag)
 This feature can be disabled by providing an empty viewport meta tag.  e.g. `app = Dash(meta_tags=[{"name": "viewport"}])`
 

dash/_callback_context.py

@@ -152,7 +152,7 @@ def display(btn1, btn2):
         grouping = getattr(flask.g, "args_grouping", {})
 
         def update_args_grouping(g):
-            if isinstance(g, dict) and isinstance(g.get("id"), dict):
+            if isinstance(g, dict) and "id" in g and "property" in g:
                 str_id = stringify_id(g["id"])
                 prop_id = f"{str_id}.{g['property']}"