Force string formatting of integer values

netbox/utilities/templatetags/helpers.py

@@ -178,7 +178,7 @@ def querystring(request, **kwargs):
     querydict = request.GET.copy()
     for k, v in kwargs.items():
         if v is not None:
-            querydict[k] = v
+            querydict[k] = str(v)
         elif k in querydict:
             querydict.pop(k)
     querystring = querydict.urlencode(safe='/')