From caf5fd4f6d0cb6fa9408942c197d296563d633cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mois=C3=A9s=20L=C3=B3pez?= <moylop260@vauxoo.com>
Date: Sun, 29 Aug 2021 14:30:32 -0500
Subject: [PATCH] [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.

---
 mail_debrand/models/mail_render_mixin.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mail_debrand/models/mail_render_mixin.py b/mail_debrand/models/mail_render_mixin.py
index 00524a5..1fc9fcb 100644
--- a/mail_debrand/models/mail_render_mixin.py
+++ b/mail_debrand/models/mail_render_mixin.py
@@ -28,7 +28,7 @@ class MailRenderMixin(models.AbstractModel):
                 parent = elem.getparent()
                 previous = elem.getprevious()
 
-                if remove_before and not remove_parent and previous:
+                if remove_before and not remove_parent and previous is not None:
                     # remove 'using' that is before <a and after </span>
                     bytes_text = etree.tostring(
                         previous, pretty_print=True, method="html"