Fix logic inversion in [28124] to ensure widgets stay with themes during a theme switch.

fixes #27897.


git-svn-id: https://develop.svn.wordpress.org/trunk@28161 602fd350-edb4-49c9-b593-d223f7449a82
Theme Installer: Proper redirection and action links post-install in multisite.

fixes #27869.


git-svn-id: https://develop.svn.wordpress.org/trunk@28163 602fd350-edb4-49c9-b593-d223f7449a82