-> For the former: because links with spaces get parsed as [[preprocessor_directives|preprocessordirective]]. You can get away with it if the first word doesn't correspond to a preprocessor directive. If you have another syntax you'd prefer, feel free to propose it. For instance, I can imagine extending the syntax with something like [["link with spaces"]].
-> For the latter: see the new `usedirs` option if you want to avoid .html suffixes.
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-testing openid ... ignore.
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-Test. Проверка. テスト ığüşöçİ ทดสอบ éphémère