indexeddb lost when updating app from cordova-android 9 to cordova-android 11

Issue に記載されている IonicStorageModule.forRoot の設定と indexeddb、sqlite、websql ドライバーの順序から始めます。説明にはソースファイルやテストの名前がないため、完了するには cordova-android 9 から 11 へのアップグレードを再現し、その後に既存のストレージが利用できなくなる理由を特定する必要があります。

Hi,

We have an app that's currently on app/play store and uses cordova-android 9.
We created new version of the app with cordova-android 11 (to align with google requirements).
When we do the update from store version to new version, all storage data is lost.
Any idea what could be the problem?

We're using storage like this:
IonicStorageModule.forRoot({ driverOrder: ['indexeddb', 'sqlite', 'websql'] }),

Dependencies:

"dependencies": {
"@angular/common": "~7.2.2",
"@angular/core": "~7.2.2",
"@angular/forms": "~7.2.2",
"@angular/http": "~7.2.2",
"@angular/platform-browser": "~7.2.2",
"@angular/platform-browser-dynamic": "~7.2.2",
"@angular/router": "~7.2.2",
"@ionic-native/android-permissions": "^5.13.0",
"@ionic-native/app-version": "^5.13.0",
"@ionic-native/camera": "^5.13.0",
"@ionic-native/clipboard": "^5.14.0",
"@ionic-native/contacts": "^5.14.0",
"@ionic-native/core": "^5.27.0",
"@ionic-native/deeplinks": "^5.26.0",
"@ionic-native/device": "^5.14.0",
"@ionic-native/diagnostic": "^5.13.0",
"@ionic-native/document-viewer": "^5.13.0",
"@ionic-native/file": "^5.13.0",
"@ionic-native/file-opener": "^5.13.0",
"@ionic-native/firebase": "5.10.0",
"@ionic-native/firebase-analytics": "^5.34.0",
"@ionic-native/http": "^5.18.0",
"@ionic-native/in-app-browser": "^5.13.0",
"@ionic-native/ionic-webview": "^5.13.0",
"@ionic-native/keyboard": "^5.13.0",
"@ionic-native/keychain-touch-id": "^5.22.0",
"@ionic-native/network": "^5.10.0",
"@ionic-native/open-native-settings": "^5.15.0",
"@ionic-native/photo-viewer": "^5.15.0",
"@ionic-native/social-sharing": "^5.31.1",
"@ionic-native/splash-screen": "~5.0.0",
"@ionic-native/sqlite": "^5.28.0",
"@ionic-native/status-bar": "~5.0.0",
"@ionic-native/toast": "5.10.0",
"@ionic/angular": "^4.11.4",
"@ionic/core": "^4.11.4",
"@ionic/storage": "2.2.0",
"@ngx-translate/core": "11.0.1",
"@ngx-translate/http-loader": "4.0.0",
"@types/marked": "^4.0.3",
"@types/node-forge": "^0.10.10",
"big-integer": "^1.6.48",
"buffer": "^6.0.3",
"canvas-confetti": "^1.4.0",
"chart.js": "^2.7.2",
"cordova-android": "11.0.0",
"cordova-android-support-gradle-release": "^3.0.1",
"cordova-clipboard": "^1.3.0",
"cordova-custom-config": "^5.1.0",
"cordova-ios": "^6.2.0",
"cordova-open-native-settings": "^1.5.2",
"cordova-plugin-add-swift-support": "^2.0.2",
"cordova-plugin-android-permissions": "^1.0.2",
"cordova-plugin-androidx": "3.0.0",
"cordova-plugin-androidx-adapter": "^1.1.1",
"cordova-plugin-app-version": "^0.1.9",
"cordova-plugin-camera": "^4.1.0",
"cordova-plugin-device": "^2.0.3",
"cordova-plugin-document-viewer": "^0.9.13",
"cordova-plugin-file-opener2": "^2.2.1",
"cordova-plugin-inappbrowser": "^4.0.0",
"cordova-plugin-ionic-keyboard": "file:cordova-plugin-ionic-keyboard",
"cordova-plugin-ionic-webview": "^5.0.0",
"cordova-plugin-network-information": "^2.0.2",
"cordova-plugin-splashscreen": "^6.0.2",
"cordova-plugin-sslcertificatechecker": "^6.0.0",
"cordova-plugin-statusbar": "^2.4.3",
"cordova-plugin-x-socialsharing": "6.0.4",
"cordova-plugin-x-toast": "^2.7.2",
"cordova-sqlite-storage": "~5.0.1",
"cordova.plugins.diagnostic": "^5.0.2",
"core-js": "~2.5.4",
"d3": "3.5.5",
"hammerjs": "^2.0.8",
"html-to-image": "^1.9.0",
"ionic": "^4.12.0",
"ionic-plugin-deeplinks": "1.0.19",
"ionicons": "^4.6.3",
"marked": "^4.0.18",
"moment": "2.24.0",
"ng2-validation": "^4.2.0",
"ngx-moment": "^3.4.0",
"node-forge": "^0.10.0",
"npm": "6.10.2",
"replace": "^1.2.1",
"rxjs": "6.5.2",
"skwas-cordova-plugin-datetimepicker": "^2.1.2",
"swissqrbill": "3.2.0",
"tslib": "^2.0.1",
"zone.js": "~0.8.29"
},