Now this works?

Web/lib/MJB/Web/Task/CreateSSLCert.pm

@@ -27,6 +27,12 @@ sub run ( $job, $blog_id ) {
         notes => { '_bid_0' => 1 },
     });
     $job->app->db->admin_jobs->create({ minion_job_id => $id });
+
+    # Don't exit until the sync job is complete.
+    while ( $job->app->minion->job( $id )->info->{state} ne 'finished' ) {
+        $job->append_log( "Waiting for sync_ssl_certs job with id $id to finish." );
+        sleep 5;
+    }
     
     $job->note( is_sync_done => 1 );