Model list doesn't update if user modifies sharing and then closes the dialog with "x" button

[jonwetzel]

1. Click "Manage sharing" on models page
2. Either share a folder which has not been shared before, or delete all users from a shared folder.
3. Close the dialog using the "X".
   The folder should switch between shared and private depending on what action was taken, but the list doesn't update (page doesn't refresh) when the user closes the dialog using the "X" button.

[riteshsamala]

updated code, please test now. Please refresh cache (I had to refresh twice before it worked) from admin panel before testing.