fixed that deleting projects with no upgrades was completely broken by https://github.com/sagemathinc/smc/pull/1077
fixed that deleting projects with no upgrades was completely broken by https://github.com/sagemathinc/smc/pull/1077

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