Master Details- Album added in the list is not displayed.

Description:-

When a user adds a new album in the list then album is expected to appear immediately in the list of albums. However, the newly added album name does not display on the list upon the first addition, but If the user adds the same album again, it only appears once.

Steps to Reproduce:-

1. Build and Run Master Detail Example
2. Click File 
3. Click on Add album... (A dialogue box appears asking for the albums informations)
4. Fill the album's details.
5. Submit

Expected Behaviour:-

It is expected the Added album should be visible in the list of existing albums. 

Actual Behaviour:-

This added album is not visible but when the user adds the same album details twice then it is visible in the list.