Insert New Media: Tabbing between fields sends you back to the image URL

[Ipstenu]

Steps to Reproduce:

1) In a post (new or old) insert a new image.
2) Use TAB to go to the TITLE and enter content
3) Use TAB again to go to CAPTION

What should happen is you're not in the CAPTION field. What actually happens is you're sent back to URL

This only happens on the Insert New Media modal, and is fine on the in-post editor in Visual Mode.

[Ipstenu]

What should happen is you're not in the CAPTION field.

Typo. What should happen is you ARE in the caption field. You're not. You're back up in URL.

[celloexpressions]

I can't reproduce, but Ipstenu can. Most likely a 4.0 regression from media-modal-keyboard improvements.

Related: #23560.

[ocean90]

I can reproduce this in Chrome 36 on OSX and it's a regression which is really annoying.

[iseulde]

Here's a fix. I have the feeling the problem lies somewhere else though. Why are we trying to select the attachment after saving attachment details? Why are we selecting an already selected attachment?

[adamsilverstein]

add inline docs

[ocean90]

In 29553:

Insert Media: Don't select a model if it's already selected.

props avryl, adamsilverstein.
fixes #29152.