Bug In AssocArrays.au3

#include <AssocArrays.au3>
#include <ButtonConstants.au3>

Global $consts
    AssocArrayCreate($consts,1)
    AssocArrayAssign($consts,'Left',$BS_LEFT)
    AssocArrayAssign($consts,'Right',$BS_RIGHT)
    AssocArrayAssign($consts,'Bottom',$BS_BOTTOM)
    AssocArrayAssign($consts,'Center',$BS_CENTER)
    AssocArrayAssign($consts,'DefPushButton',$BS_DEFPUSHBUTTON)
    AssocArrayAssign($consts,'MultiLine',$BS_MULTILINE)
    AssocArrayAssign($consts,'Top',$BS_TOP)
    AssocArrayAssign($consts,'VCenter',$BS_VCENTER)
    AssocArrayAssign($consts,'Icon',$BS_ICON)
    AssocArrayAssign($consts,'Bitmap',$BS_BITMAP)
    AssocArrayAssign($consts,'Flat',$BS_FLAT)
    AssocArrayAssign($consts,'Notify',$BS_NOTIFY); NOTE: Repeating this line will make it exist

Inspect('Notify'); Says not exist, unexpected!
Inspect('Flat');Exists
Inspect('Top');Exists

Func Inspect($test)
  If Not AssocArrayExists($consts,$test) Then
    MsgBox(0,$test,'Does not exist')
  Else
    MsgBox(0,$test,'Does exist')
  EndIf
EndFunc