The trick was using svn switch:
svn checkout http://svn.wikimedia.org/svnroot/mediawiki/trunk/phase3 cd phase3 svn switch http://svn.wikimedia.org/svnroot/mediawiki/trunk/extensions extensions/ --depth immediates cd extensions/ svn checkout http://svn.wikimedia.org/svnroot/mediawiki/trunk/extensions/SportsTeam --depth infinity cd ../.. svn up phase3 U phase3/extensions/SportsTeams/SportsTeams.i18n.php U phase3/includes/parser/Parser.php Updated to revision 100758.