Fixes duplicate check on histories without link
Fixes duplicate check on histories without link

felixgomez/Meneame,gallir/Meneame,felixgomez/Meneame,felixgomez/Meneame,gallir/Meneame,felixgomez/Meneame,gallir/Meneame,gallir/Meneame,felixgomez/Meneame,gallir/Meneame,felixgomez/Meneame,gallir/Meneame,felixgomez/Meneame