(view source) manifest.json has no (WebStore) key

[LarryLACa]

The main .zip (.crx) downloads have the webstore key.
The view source downloads manifest.json does not. I've been looking at
gmlllbghnfkpflemihljekbapjopfjik (Bookmark Manager (by Google))
meoeeoaohbmgbocpdpnjklmfmjjagkkf (Save To Google)
Is this intentional?

If I load the source as an unpacked extension, it generates a new key and I end up with two versions: one from the webstore and my unpacked version. After updating the downloaded source manifest with the original key, the unpacked version replaces the webstore instance, which is what I had expected.

This is a great archive. I'm using the unpacked versions to recover Google extensions that have been discontinued, like the two above, discontinued 8/15/18.