Fix json field extraction with mix of nested objects.

[shawnsmith]

Fixes #455.

Also fixes a case where matching on "a.b.c" and "a.d.c" would incorrectly result in the "a.b.c" matcher being set to the value of "a.d.c".

[costin]

@shawnsmith thanks for the PR. Can you please sign the CLA?

[shawnsmith]

@costin Hmm, I signed the CLA on May 19th. Did it get lost somehow? I have a confirmation email with a PDF copy of the "Individual Contributor License Agreement" document with the correct GitHub username.

[costin]

Thanks for confirming - it's probably a system hiccup. I'll look into this shortly and merge it.
Cheers!

[costin]

@shawnsmith I've merged the PR in. Thanks - the description and the test were valuable and the PR cleaned up the code as well - cheers!

As for the CLA - your PR is using a different email than the one in your github profile (and the one used for signing).

Let me know if you want to change the email of your commit or not.
As for the CLA, you can sign it using the PR email or add it to your Github profile (ping me once you do so I can pick it up).

Cheers,

[costin]

@shawnsmith Let me know how you want to proceed in case of the commit (what email to use) so I know whether to push this into master as is or not.

[shawnsmith]

@costin I've amended my commit to change the e-mail address to the one in my GitHub profile. That's the address I want to use for this. Thanks!.

[costin]

I've picked up the latest PR and pushed it into master.

Thanks again.