Unable to use supports=>post-formats without support for thumbnail

[zabatonni]

in custom post type you cant choose post-formats capability whithout using thumbnail. Post formats UI shows but after changing format it redirects me to normal posts not the custom one.

[SergeyBiryukov]

Related: ​http://wordpress.org/support/topic/custom-post-type-post-formats-revert-to-post-post-type

[kovshenin]

24360.diff​ should do it.

[SergeyBiryukov]

24360.diff​ fixes the issue reported on the forums (redirect to Posts screen when switching post formats with JS disabled).

Could not reproduce the original issue. Does it still happen on a clean install with JavaScript enabled?

My steps:

1. Created a new post type with the ​second example from Codex.
2. Added 'post-formats' to 'supports' argument, removed 'thumbnail:

   'supports' => array( 'title', 'editor', 'author', 'excerpt', 'comments', 'post-formats' )
   

3. Created a new Book. Verified that switching post formats works correctly.

[SergeyBiryukov]

In 24373:

Fix switching post formats when JavaScript is disabled. props kovshenin. see #24360.

[SergeyBiryukov]

[24388] / #24452