verify_exists sucks, it breaks my tests on the plane

apps/bandwagon/models.py

@@ -563,7 +563,7 @@ class FeaturedCollection(amo.models.ModelBase):
 class MonthlyPick(amo.models.ModelBase):
     addon = models.ForeignKey(Addon)
     blurb = models.TextField()
-    image = models.URLField()
+    image = models.URLField(verify_exists=False)
     locale = models.CharField(max_length=10, unique=True, null=True,
                               blank=True)
 

apps/blocklist/models.py

@@ -35,7 +35,7 @@ class BlocklistDetail(amo.models.ModelBase):
     name = models.CharField(max_length=255)
     why = models.TextField()
     who = models.TextField()
-    bug = models.URLField()
+    bug = models.URLField(verify_exists=False)
 
     class Meta(amo.models.ModelBase.Meta):
         db_table = 'bldetails'

apps/devhub/forms.py

@@ -816,7 +816,7 @@ class CheckCompatibilityForm(happyforms.Form):
 
 
 class NewManifestForm(happyforms.Form):
-    manifest = forms.URLField()
+    manifest = forms.URLField(verify_exists=False)
 
 
 class PremiumForm(happyforms.Form):