Forcing subversion to “–no-auth-cache”
Add “store-passwords = no” and “store-auth-creds = no” to the [auth] section of ~/.subversion/config.
Results: Subversion will never cache passwords (which are stored in plain text) or credentials
More information: http://svnbook.red-bean.com/en/1.5/svn.serverconfig.netmodel.html#svn.serverconfig.netmodel.credcache