Fixed #34148 -- Reverted "Fixed #32901 -- Optimized BaseForm.__getitem__()."

This reverts commit edde2a069929c93e37835dc3f7c9a229040058e2.

Thanks Jan Pieter Waagmeester for the report.

1 files changed, 3 insertions, 7 deletions

diff --git a/django/forms/forms.py b/django/forms/forms.py
index 7c9f1034d2..6884e6e724 100644
--- a/django/forms/forms.py
+++ b/django/forms/forms.py
@@ -175,10 +175,6 @@ class BaseForm(RenderableFormMixin):
     def __getitem__(self, name):
         """Return a BoundField with the given name."""
         try:
-            return self._bound_fields_cache[name]
-        except KeyError:
-            pass
-        try:
             field = self.fields[name]
         except KeyError:
             raise KeyError(
@@ -189,9 +185,9 @@ class BaseForm(RenderableFormMixin):
                     ", ".join(sorted(self.fields)),
                 )
             )
-        bound_field = field.get_bound_field(self, name)
-        self._bound_fields_cache[name] = bound_field
-        return bound_field
+        if name not in self._bound_fields_cache:
+            self._bound_fields_cache[name] = field.get_bound_field(self, name)
+        return self._bound_fields_cache[name]
 
     @property
     def errors(self):