From afceb5d24ba4ecc8e0958085b26e18b446a84a08 Mon Sep 17 00:00:00 2001
From: Alejandro Alonso <alejandroalonsofernandez@gmail.com>
Date: Fri, 30 Dec 2016 09:28:57 +0100
Subject: [PATCH] [Backport] Fixing error for empty tags

---
 taiga/projects/tagging/fields.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/taiga/projects/tagging/fields.py b/taiga/projects/tagging/fields.py
index 47553d8c..3a33ca87 100644
--- a/taiga/projects/tagging/fields.py
+++ b/taiga/projects/tagging/fields.py
@@ -43,7 +43,7 @@ class TagsAndTagsColorsField(serializers.WritableField):
                     color = tag[1]
 
                     if isinstance(name, str):
-                        if color is None:
+                        if color is None or color == "":
                             continue
 
                         if isinstance(color, str) and re.match('^\#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$', color):