From c44376c613333cce36e830eb846b4cdcecabaf6c Mon Sep 17 00:00:00 2001
From: Aider Ibragimov <aider.ibragimov@gmail.com>
Date: Wed, 4 Mar 2015 14:17:58 +0300
Subject: [PATCH] remove unnecessary check

---
 rest_framework/fields.py | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/rest_framework/fields.py b/rest_framework/fields.py
index d0fcd988b..d19231a2f 100644
--- a/rest_framework/fields.py
+++ b/rest_framework/fields.py
@@ -669,17 +669,13 @@ class IPAddressField(CharField):
         self.validators.extend(validators)
 
     def to_internal_value(self, data):
-        if data == '' and self.allow_blank:
-            return ''
-        data = data.strip()
-
         if data and ':' in data:
             try:
                 return clean_ipv6_address(data, self.unpack_ipv4)
             except DjangoValidationError:
                 self.fail('invalid', value=data)
 
-        return data
+        return super(IPAddressField, self).to_internal_value(data)
 
 
 # Number types...