Change app permission


I have changed the permission of my app from read to read-write. Then I renew the token of my app. Now I am redirecting users to authorize the new permissions, but when users are in Twitter page to authorize read and write operations and they click on accept button, it do nothing. It seems like a bug. They have to revoke all permissions for the app and then start the process from the begining.

Is there a way to upgrade premissions without telling the users that they have to revoke the app permissions before?