TBIO-4980: run over the grid once when redrawing
TBIO-4980: run over the grid once when redrawing

FernCreek/tinymce,tinymce/tinymce,tinymce/tinymce,FernCreek/tinymce,TeamupCom/tinymce,tinymce/tinymce,TeamupCom/tinymce,FernCreek/tinymce