Rename model block variables in spec
Rename model block variables in spec

These didn't cause any harm, since the surrounding code has model
as a method call and not a local variable, but they were still
potentially confusing.

kematzy/autoforme,mrbrdo/autoforme,kematzy/autoforme,badosu/autoforme,kematzy/autoforme,mrbrdo/autoforme,mrbrdo/autoforme,badosu/autoforme,badosu/autoforme