Remove problematic coerce function from TypedChoiceField radio fields.
Fixes #294 (closed)
It might be better to change all these to BooleanField, but simply removing the coerce function seems to allow the forms to work as intended. We probably could use more tests for these too.
Note that I did test this on a running installation with both Django 1.11 and 2.0.8 and both seem to work with this change.
Edited by Mark Sapiro