safeguard combo assignment in inverse for non-preseed case (thanks David)
@@ -314,6 +314,7 @@ class Inversion:
# Regardless of anything we did for the heuristic guess, bring the
# static preseed back into play (only does anything if inds_preseed
# is not blank)
+ if len(self.inds_preseed) > 0:
x0[self.inds_preseed] = combo
# Record initializaation state
