Back out my last change so caching is disabled again and update the

comment to more closely reflect what all is going on.

tmcd/common/config/rc.firewall

@@ -73,11 +73,12 @@ sub firewallee();
 #configtmcc("portnum", 7778);
 
 #
-# XXX for debugging default rules: make sure we always fetch
-# from boss so we can pick up changes without rebooting using
-# "/usr/local/etc/emulab/rc/rc.firewall reconfig"
+# XXX At the moment, rc.firewall is run before bootsetup(), so we need to clear
+# the cache manually or we might get bad config data.  Note that nother side
+# effect of running before bootsetup() is that we don't get the config through
+# the 'fullconfig' call, it is a separate connection.
 #
-#configtmcc("nocache", 1);
+configtmcc("nocache", 1);
 
 # Allow default above.
 if (@ARGV) {