Change in scale basis for pricing condition

Hi,

For one of my client, there is a sale pricing conditio nwith Scale Basis = B (Value scale). And there are some condition records maintained with this value scale.

However becuase of a change request, hthe scale basis of this condition type had to be changed to C (Quantity Scale). Now after this chaneg the existing condition records still show the the value scale.

I need to understand if this is the expected behaviour or should the existing conditio nrecords be changed/deleted with this chaneg in scale basis.