diff --git a/django/contrib/admin/options.py b/django/contrib/admin/options.py
index 8a7483c..7960229 100644
--- a/django/contrib/admin/options.py
+++ b/django/contrib/admin/options.py
@@ -1181,6 +1181,8 @@ class ModelAdmin(BaseModelAdmin):
             'preserved_filters': self.get_preserved_filters(request),
         }
         context.update(extra_context or {})
+        if not form_validated and "_saveasnew" in request.POST:
+            return self.render_change_form(request, context, form_url=form_url, change=True)
         return self.render_change_form(request, context, form_url=form_url, add=True)
 
     @csrf_protect_m