X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/e977f7187b10b1bc0a30794cd585c6b840568996..883ff4f05600c543ac92a47416fcef3ac1f1f98b:/src/documents/models/image.py

diff --git a/src/documents/models/image.py b/src/documents/models/image.py
index 10782dcf..b05c9288 100644
--- a/src/documents/models/image.py
+++ b/src/documents/models/image.py
@@ -23,9 +23,9 @@ class Image(dvcs_models.Document):
     project = models.ForeignKey(Project, models.SET_NULL, null=True, blank=True)
 
     # cache
-    _new_publishable = models.NullBooleanField(editable=False)
-    _published = models.NullBooleanField(editable=False)
-    _changed = models.NullBooleanField(editable=False)
+    _new_publishable = models.BooleanField(editable=False, null=True)
+    _published = models.BooleanField(editable=False, null=True)
+    _changed = models.BooleanField(editable=False, null=True)
 
     class Meta:
         app_label = 'documents'