Fix issue zostera#153/zostera#223

src/django_bootstrap5/renderers.py

@@ -488,12 +488,17 @@ def render(self):
  errors = self.get_errors_html()
 
  if self.is_form_control_widget():
- addon_before = (
- format_html('<span class="input-group-text">{}</span>', self.addon_before) if self.addon_before else ""
- )
- addon_after = (
- format_html('<span class="input-group-text">{}</span>', self.addon_after) if self.addon_after else ""
- )
+ addon_before_wrapper = self.addon_before or ""
+ addon_after_wrapper = self.addon_after or ""
+ if self.addon_before and self.addon_before_class is not None:
+ addon_before_wrapper = format_html(
+ f'<span class="{self.addon_before_class}">{self.addon_before}</span>'
+ )
+ if self.addon_after and self.addon_after_class is not None:
+ addon_before_wrapper = format_html(
+ f'<span class="{self.addon_after_class}">{self.addon_after}</span>'
+ )
+
  if addon_before or addon_after:
  classes = "input-group"
  if self.server_side_validation and self.get_server_side_validation_classes():