[BOUNDARY ERRATA] Vietnam ADM2 Code 43 Duplicates

[Portur]

Describe the Error Vietnam (ADM0 = VNM) has duplicate code VN-43 for ADM2

Screenshots

Additional context I added the name of the second one to easily distinguish. See Island in screenshot

[DanRunfola]

Just confirming this one - seperately, it looks like we have some water boundary issues to resolve here.

@all-contributors add @Portur to ideas

[allcontributors[bot]]

@DanRunfola

I've put up a pull request to add @Portur! :tada: