Made template parser remember last initted page_id and namespace to avoid double init; made additional_headers reassign only do so if $template->additional_headers is empty (it's being blanked somehow, need to come up with a backtrace sometime)

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{

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  // Language metadata

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  lang_name_english: 'English',

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  lang_name_native: 'English',

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  lang_code: 'eng'

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}