SSH explorer can't determine user from match block

[legowerewolf]

1Password's SSH Bookmarks feature creates SSH config entries that look like this:

# 1Password Item: wo-mac
Match Host wo-mac.taila0f8a.ts.net User user
  IdentitiesOnly yes
  IdentityFile ~/.ssh/1Password/SHA256_Oec5X91ZYb6AkJnsW83vMmYsTy2dDRvWqygTkMoBsQE.pub

The SSH remote explorer in VS Code does not detect the configured user "user", and using the remote explorer to connect fails because SSH can't determine which key to use just from the host - the match block isn't satisfied, so it doesn't get the instruction to use a particular IdentityFile.