Fix for bug #7891 (https://gna.org/bugs/index.php?7891).
The fix was to create the 'self.relax.data.res[run][i].heteronuc' and 'self.relax.data.res[run][i].proton' data structures when reading in the model-free results file.
Authored by: bugman 2006-11-30
Parent: [r2896]
Child: [r2898]
