Thunderbolt display firmware update 1.2

I have a got a problem with the thunderbolt display firmware 1.2. MY screen is not compatible because it was purchased in 2012 and the update can not be performed. However, the update keeps reappearing on the Appstore updates. I tried the what Apple recommends on:

http://ift.tt/1N5bkAy

However, nothing changes and the update keeps posting. Many people are complaining about it. Anyone has an idea how to disable this update? Thank you all for the support!

Greg