Fixes #12977: Fix URL parameters for object count dashboard widgets (#12991)

* Fixes #12977: Introduce dict_to_querydict() to ensure proper handling of QueryDicts

* Remove unused import

netbox/utilities/templatetags/builtins/tags.py

@@ -1,6 +1,8 @@
 from django import template
 from django.http import QueryDict
 
+from utilities.utils import dict_to_querydict
+
 __all__ = (
     'badge',
     'checkmark',
@@ -87,8 +89,7 @@ def htmx_table(context, viewname, return_url=None, **kwargs):
         viewname: The name of the view to use for the HTMX request (e.g. `dcim:site_list`)
         return_url: The URL to pass as the `return_url`. If not provided, the current request's path will be used.
     """
-    url_params = QueryDict(mutable=True)
-    url_params.update(kwargs)
+    url_params = dict_to_querydict(kwargs)
     url_params['return_url'] = return_url or context['request'].path
     return {
         'viewname': viewname,

netbox/utilities/utils.py

@@ -11,8 +11,9 @@ from django.core import serializers
 from django.db.models import Count, OuterRef, Subquery
 from django.db.models.functions import Coalesce
 from django.http import QueryDict
-from django.utils.html import escape
 from django.utils import timezone
+from django.utils.datastructures import MultiValueDict
+from django.utils.html import escape
 from django.utils.timezone import localtime
 from jinja2.sandbox import SandboxedEnvironment
 from mptt.models import MPTTModel
@@ -231,6 +232,19 @@ def dict_to_filter_params(d, prefix=''):
     return params
 
 
+def dict_to_querydict(d, mutable=True):
+    """
+    Create a QueryDict instance from a regular Python dictionary.
+    """
+    qd = QueryDict(mutable=True)
+    for k, v in d.items():
+        item = MultiValueDict({k: v}) if isinstance(v, (list, tuple, set)) else {k: v}
+        qd.update(item)
+    if not mutable:
+        qd._mutable = False
+    return qd
+
+
 def normalize_querydict(querydict):
     """
     Convert a QueryDict to a normal, mutable dictionary, preserving list values. For example,