Clear cache from React Query on logout

app/soapbox/actions/auth.ts

@@ -16,6 +16,7 @@ import { obtainOAuthToken, revokeOAuthToken } from 'soapbox/actions/oauth';
 import { startOnboarding } from 'soapbox/actions/onboarding';
 import snackbar from 'soapbox/actions/snackbar';
 import { custom } from 'soapbox/custom';
+import { queryClient } from 'soapbox/queries/client';
 import KVStore from 'soapbox/storage/kv-store';
 import { getLoggedInAccount, parseBaseURL } from 'soapbox/utils/auth';
 import sourceCode from 'soapbox/utils/code';
@@ -237,10 +238,16 @@ export const logOut = () =>
       token: state.auth.getIn(['users', account.url, 'access_token']),
     };
 
-    return dispatch(revokeOAuthToken(params)).finally(() => {
-      dispatch({ type: AUTH_LOGGED_OUT, account, standalone });
-      return dispatch(snackbar.success(messages.loggedOut));
-    });
+    return dispatch(revokeOAuthToken(params))
+      .finally(() => {
+        // Clear all stored cache from React Query
+        queryClient.invalidateQueries();
+        queryClient.clear();
+
+        dispatch({ type: AUTH_LOGGED_OUT, account, standalone });
+
+        return dispatch(snackbar.success(messages.loggedOut));
+      });
   };
 
 export const switchAccount = (accountId: string, background = false) =>