TINY-1081, imagetools: findSelectedBlob() has to be promise-compliant in all logic paths
TINY-1081, imagetools: findSelectedBlob() has to be promise-compliant in all logic paths

adaptiffdesigns/tinymce,FernCreek/tinymce,tinymce/tinymce,leofeyer/tinymce,FernCreek/tinymce,danielpunkass/tinymce,adaptiffdesigns/tinymce,TeamupCom/tinymce,danielpunkass/tinymce,tinymce/tinymce,gencer/tinymce,leofeyer/tinymce,FernCreek/tinymce,tinymce/tinymce,gencer/tinymce,danielpunkass/tinymce,TeamupCom/tinymce