Using tca on a document based app with tabs

[appfrosch]

I am trying to include tca into a document app of mine that has tabs.
I can spin up the raw features and views and connect them with each other, but when I change the document's content in the second tab, the app springs back to tab 1 (the initial tab).
The document is bound to the AppFeature.

I guess it has to do with the mentioned binding of the document to the AppFeature, but I am not quite sure as to how I could handle that differently...

You can observe the behaviour in this screencast I did on a sample project:

Since the sample project has a certain size already, I put it up to GitHub to take a look at–I am aware that looking that up there is quite involved so if anybody could find some any time at all to take a look at it and perhaps have some tips for me, I would highly appreciate it! Here's the repo:
https://github.com/appfrosch/so-tca-docBasedWithTabs/tree/main/so-tca-docBasedWithTabs

[appfrosch]

Shoutout to https://github.com/treboc who helped me figuring this out.
Seems as though what my mistake was is that I was instantiating the store in the init of the AppView which meant that it got re-rendered on every change.

Instead I am now rather instantiating the store in the Scene entry point of the app:

+import ComposableArchitecture
 import SwiftUI

 @main
 struct so_tca_docBasedWithTabsApp: App {
-    var body: some Scene {
-        DocumentGroup(newDocument: so_tca_docBasedWithTabsDocument()) { file in
-            AppView(document: file.$document)
-        }
+  var body: some Scene {
+    DocumentGroup(newDocument: so_tca_docBasedWithTabsDocument()) { file in
+      AppView(document: file.$document, store: createStore(with: file.document.text))
     }
+  }
+
+  func createStore(with text: String) -> StoreOf<AppFeature> {
+    Store(
+      initialState: AppFeature.State(text: "Hello, world!")) {
+      AppFeature()
+    }
+  }
 }

[appfrosch]

This compare should show what I did wrong and what I did to fix it (perhaps it is of help to somebody or even my future self...)
appfrosch/so-tca-docBasedWithTabs@issue-tab-selection-present...main