Thank you,
It is a defect. It is in fact a side effect of issue#63 fix, which after regeneration of the the whole XML doc doesn't reintroduces the original namespaces.
I am promoting your post into an issue.
Until the fix is available unfortunately the only choice you have is to use WixSourceGenerated event where you can manually add namespace. See InjectXML sample.
It is a defect. It is in fact a side effect of issue#63 fix, which after regeneration of the the whole XML doc doesn't reintroduces the original namespaces.
I am promoting your post into an issue.
Until the fix is available unfortunately the only choice you have is to use WixSourceGenerated event where you can manually add namespace. See InjectXML sample.