better debugging when the row has no Id

web/includes/Object.php

@@ -18,12 +18,17 @@ class ZM_Object {
         $row = dbFetchOne("SELECT * FROM `$table` WHERE `Id`=?", NULL, array($IdOrRow));
         if (!$row) {
           Error("Unable to load $class record for Id=$IdOrRow");
+          return;
         }
       } else if (is_array($IdOrRow)) {
         $row = $IdOrRow;
       }
 
       if ( $row ) {
+        if (!isset($row['Id'])) {
+          Error("No Id in " . print_r($row, true));
+          return;
+        }
         foreach ($row as $k => $v) {
           $this->{$k} = $v;
         }