Fix default export issue w/ `advancedFormat`

[vfonic]

This cost me a bug in my app. :)

It also made me decide to strongly suggest not using default exports in my projects.

[coveralls]

Pull Request Test Coverage Report for Build 238

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 236:	0.0%
Covered Lines:	43
Relevant Lines:	43

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💛 - Coveralls

[cht8687]

thanks @vfonic