Fix for the wrong unpacking of R20A and R20B in model NS CPMG 2SITE 3D full model.
bug #22146: (https://gna.org/bugs/?22146) Unpacking of R2A and R2B is performed wrong for clustered "full" dispersion models.
Authored by: tlinnet 2014-06-06
Parent: [r23704]
Child: [r23706]
