[REF] mail_debrand: Fix FutureWarning: The behavior of this method will change in future versions. Use specific 'len(elem)' or 'elem is not None' test instead.
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@ -28,7 +28,7 @@ class MailRenderMixin(models.AbstractModel):
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parent = elem.getparent()
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previous = elem.getprevious()
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if remove_before and not remove_parent and previous:
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if remove_before and not remove_parent and previous is not None:
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# remove 'using' that is before <a and after </span>
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bytes_text = etree.tostring(
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previous, pretty_print=True, method="html"
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