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In https world it's standard to do that, and it's relied on. Real-life example: 8.8.8.8#853 over TLSv1.3 won't send a certificate if we don't send SNI (no idea why; also they do send it with TLSv1.2). As a consequence, we no longer allow multiple hostnames per address-port tuple, but that didn't seem useful.
To find the state of this project's repository at the time of any of these versions, check out the tags.