As reported by #3686-meta the theme ‘Branches’ is appearing as a special item in the code browser.
Could the following rules be added to wp-themes/conf/trac.ini under [svn] to disable TracTrac Trac is the place where contributors create issues for bugs or feature requests much like GitHub.https://core.trac.wordpress.org/.’s default svn structure handling which we don’t use on that instance?
branches=
tags=
(I’ve tested that this works as expected under a local trac)