Fix issue with redacting via edit composer flow causing stuck editStates (#8184)

src/Editing.ts

@@ -0,0 +1,20 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { TimelineRenderingType } from "./contexts/RoomContext";
+
+export const editorRoomKey = (roomId: string, context: TimelineRenderingType) => `mx_edit_room_${roomId}_${context}`;
+export const editorStateKey = (eventId: string) => `mx_edit_state_${eventId}`;