Jeff King [off-list ref] writes:
I expect those cases to be even less common, of course, but it's nice
that it's straightforward to support them.
quoted
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I tried to optimize for the common case (many repos under one identity)
than the uncommon (many identities under one host).
As I am not convinced if this statement is true.
I admit I don't have any data beyond my own experiences. GitHub tends
towards the concept of a single identity, and it has some group
management. I don't know about other sites, though. Do you have any
specific examples in mind?
I think I heard Shawn talk about Gerrit installations where multiple
instances that serve separate userbases are behind a shared Apache
front-end that would be problematic with this limitation.