Unexpected redirect if you try to visit non-existant wp-admin (Multisite)

[Ipstenu]

If you go to domain.com/FAKESITE/wp-admin (or FAKESITE.domain.com/wp-admin) , you get redirected to the main site's wp-admin (or the login page to go there if not logged in).

This doesn't match what happens when we go to domain.com/FAKESITE where it says "No such site.'

Of note, NOBLOGREDIRECT works as expected in this case, and sends you where ever you told it to go to.

[jeremyfelt]

I think http://domain.com/invalid-site/wp-admin/ should redirect to http://domain.com/ and drop the wp-admin attempt.

Somewhat related, #26407. Theoretically a primary network could be defined one day as well to replace http://domain.com/ as the next in line.

Moving to 3.9 for discussion.

[VarunAgw]

Fix

[jeremyfelt]

Hi @VarunAgw, thank you for taking the time to submit a patch!

Unfortunately, as you may have seen in IRC, the discussion led to the discovery of another duplicate ticket that more progress has been made against - #17376.

Can you test that patch out and comment over there? Thanks!