new-grid adapt2 revision

sails/roles/database/files/new-grid-system-adapt2.sql

@@ -48,9 +48,10 @@ SELECT "Asociando pictos a tableros...";
 
 UPDATE stu_picto AS A
 JOIN stu_picto AS B on
-A.id_scene = B.id_scene AND
-A.id_stu = B.id_stu AND
-A.attributes->>"$.id_cat" = B.id_pic
+  A.id_scene = B.id_scene AND
+  A.id_stu = B.id_stu AND
+  A.attributes->>"$.id_cat" = B.id_pic
+WHERE B.id_child_grid IS NOT NULL
 SET A.id_grid = B.id_child_grid;
 
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