Media attachment pages break in new media uploader

[JerrySarcastic]

Steps to Replicate

• Add new page/post
• Create a new page or post
• Upload a new image to insert into the page/post, using the new media uploader
• Publish the page/post
• Once published, trash the page/post you just created.
• Create another new page/post
• Insert media from the media library, selecting the same image as you uploaded previously.
• Set the media link target to "Attachment Page"
• Publish and view.
• When you click on the image to view the attachment page, it is four-oh-four. :(

Notes:
This only affects media that is uploaded to a page/post directly from the media uploader, not media that already exists in the Media Library.

[markjaquith]

This happens in WordPress 3.4.x too. Not new.

We'll have to discuss what we'd like to happen here. The "inherit" status means that when a post goes away, its child attachment page also goes away.

[helenyhou]

Duplicate of #14639.