only warn if the renaming has an actual empty string
only warn if the renaming has an actual empty string

sheafferusa/appmaker,valmzetvn/appmaker,uche40/appmaker,nirdeshdwa/appmaker,sheafferusa/appmaker,sheafferusa/appmaker,secretrobotron/appmaker,ekospinach/appmaker,vaginessa/appmaker,pcoughlin/appmaker,mozilla-appmaker/appmaker,pcoughlin/appmaker,uche40/appmaker,nirdeshdwa/appmaker,lexoyo/appmaker,mozilla-appmaker/appmaker,valmzetvn/appmaker,ekospinach/appmaker,mozilla-appmaker/appmaker,secretrobotron/appmaker,lexoyo/appmaker,vaginessa/appmaker,vaginessa/appmaker,uche40/appmaker,nirdeshdwa/appmaker,valmzetvn/appmaker,lexoyo/appmaker,pcoughlin/appmaker,ekospinach/appmaker