disable projects level ghost tabs -- see https://github.com/sagemathinc/smc/issues/1271
disable projects level ghost tabs -- see https://github.com/sagemathinc/smc/issues/1271

DrXyzzy/smc,tscholl2/smc,tscholl2/smc,DrXyzzy/smc,DrXyzzy/smc,tscholl2/smc,tscholl2/smc,sagemathinc/smc,DrXyzzy/smc,sagemathinc/smc,tscholl2/smc,sagemathinc/smc,sagemathinc/smc