use empty server name is client did not specify one #39671
Merged
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This follow-up on #38202. ServerName is optional TLS extensions and handshake should work without in.
Currently SslStream will try to fabricate some name using atomic counter.
This change removes the behavior and if empty name is used, we would ship setting name.
Origin of this is far back in .NET Framework but proposed behavior seems to work fine on all supported OSes.
It also should be rare condition as in most cases client wants to connect to particular host and us OS logic for certificate verification.
fixes #38356