AP-293: Don't set the link dialog urlinput metadata text during init if no link currently exists
AP-293: Don't set the link dialog urlinput metadata text during init if no link currently exists

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