Coil:Heating:DXSingleSpeed default EIRFT Curve wrong?

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I am referring to the defaults in OpenStudioApplication 1.2.1. The CapFT Curve for this coil has the following coefficients:

c0 = 0.75874600000000003
c1 = 0
c2 = 0
c3 = 0.027626000000000001
c4 = 0.00014871599999999999
c5 = 0

The EIRFT Curve for this coil has the following coefficients:

c0 = 1.19248
c1 = -0.030043799999999999
c2 = 0.0010374500000000001
c3 = 0
c4 = 0
c5 = 0

Both have the biquadratic form:

f(x,y) = c0 + c1*x + c2*x^2 + c3*y +c4*y^2 + c5*x*y

Assuming x = IADB and y = OADB, I would think CapFT then is a function of only OADB, and EIRFT then is a function of only IADB? The dependence on only OADB is documented in Big Ladder, so I think the coefficients for the EIRFT Curve are switched? c1 and c2 should be c3 and c4?