Fix snapshot record for Get requests

[cinkonaap]

Related issue: #409
Problem:

While developing one of the tests in my app it turned out that when creating mocked find operation from already mocked model, like:

const user = make('user');
mockFindRecord(user);

the Snapshot object never had the record set to this model.

[danielspaniel]

nice work @cinkonaap and @springerigor

[kbiedrzycki]

@danielspaniel any chance to publish new version including these changes soon?

[danielspaniel]

v3.9.5 is now released with this fix