Fixes pickel issue of lazy object

CHANGELOG.md

@@ -1,6 +1,9 @@
 Changelog Summary
 =================
 
+### v5.7.1
+* Fixes pickle bug of lazy object
+
 ### v5.7.0
 * Security fix that allows a `field_id` to only be used for the intended JSON endpoint.
   

django_select2/__init__.py

@@ -9,4 +9,4 @@ The app includes Select2 driven Django Widgets and Form Fields.
 
 """
 
-__version__ = "5.7.0"
+__version__ = "5.7.1"

django_select2/forms.py

@@ -53,7 +53,7 @@ from itertools import chain
 
 from django import forms
 from django.core import signing
-from django.core.urlresolvers import reverse_lazy
+from django.core.urlresolvers import reverse
 from django.db.models import Q
 from django.forms.models import ModelChoiceIterator
 from django.utils.encoding import force_text
@@ -194,7 +194,7 @@ class HeavySelect2Mixin(Select2Mixin):
         """Return url from instance or by reversing :attr:`.data_view`."""
         if self.data_url:
             return self.data_url
-        return reverse_lazy(self.data_view)
+        return reverse(self.data_view)
 
     def build_attrs(self, extra_attrs=None, **kwargs):
         """Set select2's ajax attributes."""