[issue12239] msilib VT_EMPTY SummaryInformation properties raise an error (suggest returning None)

[Berker Peksag]

Berker Peksag <berker.peksag at gmail.com> added the comment:

Thanks for the patch, Mark. I updated the test code and commit it to 3.6 and master branches.

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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed
versions: +Python 3.6, Python 3.7 -Python 3.4, Python 3.5

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