[DXBase] Are pre-1975 CW contacts handled right?

[Floyd Sense]

I'm currently a DX4WIN user, evaluating alternative logging programs because
DX4WIN has a problem that won't be fixed.  What I need to know is: Does
DXBase have this same problem?

Here's the problem: Unlike the other DXCC awards, the ARRL has a cutoff date
of 1975 for QSOs valid for the CW DXCC.  In other words, a pre-1975 QSO does
NOT count for CW DXCC, but DOES count towards Mixed DXCC.  If I've worked a
country ONLY prior to 1975 and only on CW, it shows up as a counter for both
my Mixed and CW DXCCs.  It should show up only for MIXED DXCC.  In this
situation, will DXBase properly handle it?

This may seem like a trivial problem, but I have many pre-1975 QSOs that
fall into this trap.  Where it creates a problem is on the DX Spots.  DX4WIN
colors such a spot as already credited on CW, whereas it is really a needed
one on CW for the CW DXCC.  Deleting the QSO doesn't solve anything, since
then it disappears from the Mixed count.

73, Floyd - K8AC