TINY-2828: fixed flakey paste image behaviour
TINY-2828: fixed flakey paste image behaviour

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