diff --git a/netbox/extras/forms/model_forms.py b/netbox/extras/forms/model_forms.py
index a21cf21e2..3fb8062e6 100644
--- a/netbox/extras/forms/model_forms.py
+++ b/netbox/extras/forms/model_forms.py
@@ -1,6 +1,7 @@
+import json
+
 from django import forms
 from django.contrib.contenttypes.models import ContentType
-from django.http import QueryDict
 from django.utils.translation import gettext as _
 
 from dcim.models import DeviceRole, DeviceType, Location, Platform, Region, Site, SiteGroup
@@ -128,11 +129,10 @@ class SavedFilterForm(BootstrapMixin, forms.ModelForm):
 
     def __init__(self, *args, initial=None, **kwargs):
 
-        # Convert any parameters delivered via initial data to a dictionary
+        # Convert any parameters delivered via initial data to JSON data
         if initial and 'parameters' in initial:
             if type(initial['parameters']) is str:
-                # TODO: Make a utility function for this
-                initial['parameters'] = dict(QueryDict(initial['parameters']).lists())
+                initial['parameters'] = json.loads(initial['parameters'])
 
         super().__init__(*args, initial=initial, **kwargs)
 
diff --git a/netbox/extras/models/models.py b/netbox/extras/models/models.py
index 3b44b4b6b..bb22c9851 100644
--- a/netbox/extras/models/models.py
+++ b/netbox/extras/models/models.py
@@ -245,7 +245,7 @@ class CustomLink(CloningMixin, ExportTemplatesMixin, WebhooksMixin, ChangeLogged
     )
 
     clone_fields = (
-        'enabled', 'weight', 'group_name', 'button_class', 'new_window',
+        'content_types', 'enabled', 'weight', 'group_name', 'button_class', 'new_window',
     )
 
     class Meta:
@@ -410,7 +410,7 @@ class SavedFilter(CloningMixin, ExportTemplatesMixin, WebhooksMixin, ChangeLogge
     parameters = models.JSONField()
 
     clone_fields = (
-        'enabled', 'weight',
+        'content_types', 'weight', 'enabled', 'parameters',
     )
 
     class Meta:
diff --git a/netbox/netbox/models/features.py b/netbox/netbox/models/features.py
index 62482a26f..71c1a7c5c 100644
--- a/netbox/netbox/models/features.py
+++ b/netbox/netbox/models/features.py
@@ -1,3 +1,4 @@
+import json
 from collections import defaultdict
 from functools import cached_property
 
@@ -111,7 +112,11 @@ class CloningMixin(models.Model):
         for field_name in getattr(self, 'clone_fields', []):
             field = self._meta.get_field(field_name)
             field_value = field.value_from_object(self)
-            if field_value not in (None, ''):
+            if field_value and isinstance(field, models.ManyToManyField):
+                attrs[field_name] = [v.pk for v in field_value]
+            elif field_value and isinstance(field, models.JSONField):
+                attrs[field_name] = json.dumps(field_value)
+            elif field_value not in (None, ''):
                 attrs[field_name] = field_value
 
         # Include tags (if applicable)