fix localContent being outdated for edits

lib/widgets/composer/composer.dart

@@ -40,13 +40,29 @@ class const Composer(
     final shouldMention = useState(true);
     final query = useState("");
     final relatedEvent = this.relatedEvent == null
+        ? null
+        : ref.watch(
+            RoomsController.provider.select((rooms) {
+              final event = rooms[roomId]?.events[this.relatedEvent!];
+              if (event == null) return null;
+
+              final edited = event.lastEditRowId == 0
                   ? null
                   : ref.watch(
                       RoomsController.provider.select(
-              (rooms) => rooms[roomId]?.events[this.relatedEvent!],
+                        (value) => value[roomId]?.events[event.lastEditRowId],
                       ),
                     );
 
+              return edited == null
+                  ? event
+                  : event.copyWith(
+                      content: edited.content,
+                      localContent: edited.localContent,
+                    );
+            }),
+          );
+
     if (relationType == .edit && controller.value.text.isEmpty) {
       controller.value.text =
           relatedEvent?.localContent?.editSource ??

lib/widgets/renderers/event.dart

@@ -48,33 +48,34 @@ class const EventRenderer(
     final focusNode = useFocusNode();
     useListenable(focusNode);
 
-    final (initialEvent, previousEvent) = ref.watch(
-      RoomsController.provider.select(
-        (value) => (
-          value[roomId]?.events[eventRowId],
-          previousEventRowId == null
-              ? null
-              : value[roomId]?.events[previousEventRowId!],
-        ),
-      ),
-    );
+    final (event, previousEvent) = ref.watch(
+      RoomsController.provider.select((rooms) {
+        final event = rooms[roomId]?.events[eventRowId];
+        if (event == null) return (null, null);
 
-    if (initialEvent == null) return SizedBox.shrink();
-
-    final edited = initialEvent.lastEditRowId == 0
+        final edited = event.lastEditRowId == 0
             ? null
             : ref.watch(
                 RoomsController.provider.select(
-              (value) => value[roomId]?.events[initialEvent.lastEditRowId],
+                  (value) => value[roomId]?.events[event.lastEditRowId],
                 ),
               );
 
-    final event = edited == null
-        ? initialEvent
-        : initialEvent.copyWith(
+        return (
+          edited == null
+              ? event
+              : event.copyWith(
                   content: edited.content,
                   localContent: edited.localContent,
+                ),
+          previousEventRowId == null
+              ? null
+              : rooms[roomId]?.events[previousEventRowId!],
         );
+      }),
+    );
+
+    if (event == null) return SizedBox.shrink();
 
     final isGrouped =
         previousEvent?.content is MessageContent &&