fix: allow partial data when merge

[benjaminkwokhuen]

Fix #22

[k-ode]

Thanks for the pr (and for writing a test)!

This will swallow all errors, which I don't think is what you want most of the time. It's probably easier to just remove this check from getRealTypeFromObject in utils.ts

[benjaminkwokhuen]

@k-ode Fixed. It'll return null if the property does not exist.

[k-ode]

Released as 1.0.8