fix issue #256

[edionmelarosa]

This PR fixed issue #256

Bug replication

1. Create a new post.
2. Go to general settings and add a tag(don't select from existing). Issue begin here.
3. Edit post content. From here, the issue happens. It sends a request to the backend with not updated tags ids. See the example data below.

Now, in the backend, it checks the existing tag record by id and inserts a new record if no record found. With the data above this process will fail.

PR Solution

This PR fixes it by returning the updated tag records to frontend and update frontend tag lists with the updated tags from the backend.

[lukesnowden]

composer require themsaid/wink:dev-master#cfd120fb81aa0b3f1cc1b9de8b3e4f5580f7b352 checked and this fixes the issue.