           me.group = sb['tawk/drag'].over or sb['tawk/drag'].ghostGroup
           me.timeEntered = Date.now()
 
-        sb['tawk/drag'].over = null
+        sb['tawk/drag'].over = undefined
         sb['tawk/drag'].dragging = false
-        sb['tawk/drag'].ghostGroup = null
+        sb['tawk/drag'].ghostGroup = undefined
 
         ui.helper.css
           top: 0

      refreshPositions: true
      zIndex: 1000
      start: (e, ui) ->
        sb['tawk/drag'].over = null # set while you mouseover groups
        sb['tawk/drag'].dragging = true
        sb['tawk/drag'].ghostGroup = random_string 16
      stop: (e, ui) ->

      if sb['tawk/drag'].over == gid
        # If not, another over event has fired on another group
        # and we do not want to clear the group
        sb['tawk/drag'].over = undefined

dom.PERSON = ->
  person = @props.person
