context types hard coded

Looking like Context Types are hard coded somewhere.
We have modified Context Types but in tickets filtering - on add criteria to filter system picking up the hard coded Context Type instead of selected one.
So, if you have changed 'browser' to 'New Type' and selected 'New Type' and 'Item1' from the list, on add criteria to filter system will add not
'New Type amongst Item1'
but
'browser amongst Item1'
Regards,
Evgueni