update comment avatar when emails is empty
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@ -205,7 +205,7 @@ class Comment implements EntityInterface
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*/
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public function getAvatar(): string
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{
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return 'https://secure.gravatar.com/avatar/'.md5($this->getEmail()).'.jpg?s=90&d=retro';
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return 'https://secure.gravatar.com/avatar/'.md5($this->getEmail() ?? 'undefined@undefined').'.jpg?s=90&d=retro';
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}
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/**
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