Store settings in IndexedDB even on unsupported backends

app/soapbox/actions/me.js

@@ -1,3 +1,4 @@
+import KVStore from 'soapbox/storage/kv_store';
 import { getAuthUserId, getAuthUserUrl } from 'soapbox/utils/auth';
 
 import api from '../api';
@@ -46,6 +47,18 @@ export function fetchMe() {
   };
 }
 
+/** Update the auth account in IndexedDB for Mastodon, etc. */
+const persistAuthAccount = (account, params) => {
+  if (account && account.url) {
+    if (!account.pleroma) account.pleroma = {};
+
+    if (!account.pleroma.settings_store) {
+      account.pleroma.settings_store = params.pleroma_settings_store || {};
+    }
+    KVStore.setItem(`authAccount:${account.url}`, account).catch(console.error);
+  }
+};
+
 export function patchMe(params, formData = false) {
   return (dispatch, getState) => {
     dispatch(patchMeRequest());
@@ -59,6 +72,7 @@ export function patchMe(params, formData = false) {
     return api(getState)
       .patch('/api/v1/accounts/update_credentials', params, options)
       .then(response => {
+        persistAuthAccount(response.data, params);
         dispatch(patchMeSuccess(response.data));
       }).catch(error => {
         dispatch(patchMeFail(error));

app/soapbox/reducers/auth.js

@@ -260,7 +260,16 @@ const importMastodonPreload = (state, data) => {
 
 const persistAuthAccount = account => {
   if (account && account.url) {
-    KVStore.setItem(`authAccount:${account.url}`, account).catch(console.error);
+    const key = `authAccount:${account.url}`;
+    if (!account.pleroma) account.pleroma = {};
+    KVStore.getItem(key).then(oldAccount => {
+      const settings = oldAccount?.pleroma?.settings_store || {};
+      if (!account.pleroma.settings_store) {
+        account.pleroma.settings_store = settings;
+      }
+      KVStore.setItem(key, account);
+    })
+      .catch(console.error);
   }
 };