getOptimisticResponse does not seem to populate __typename

[Globegitter]

I have a mutation which returns an optimistic response as follows:

 getOptimisticResponse() {
    const {dateOfBirth, otherField, otherOtherField} = this.props;
    return {
      customer: {
        dateOfBirth,
        otherField,
        otherOtherField
      }
    };
  }

Which leads to: 'RelayQueryWriter: Could not find a type name for record%s.', here: 'RelayQueryWriter: Could not find a type name for record %s.',

When debugging I can see that the passed-in payload does not have a __typename. If I set it manually to Customer in the getOptimisticResponse the warning disappears.

I am using a version from master with the commit id 090b2b1c1228fb3337d8af68648b34150da682e6, so from about 2 days ago,

[josephsavona]

@Globegitter thanks for filing this, see #621 for a fix

[josephsavona]

@Globegitter thanks again for bringing this up!