fix (paginator): fix panic when isNil(...) is called with an arrary

[coveralls]

Pull Request Test Coverage Report for Build 217

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.5%) to 97.849%

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Totals
Change from base Build 216:	0.5%
Covered Lines:	364
Relevant Lines:	372

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 218

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.5%) to 97.849%

---

Totals
Change from base Build 216:	0.5%
Covered Lines:	364
Relevant Lines:	372

---

💛 - Coveralls

[jimlambrt]

@pilagod - we bumped into this issue because we're using google's uuid in our models and it's defined as type UUID [16]byte

[pilagod]

Thanks for the finding. I think this is a quite common case this library should take care of.

LGTM. I am going to merge it 💪

[pilagod]

I have published v2.3.1 and can upgrade to it for this fix 💪