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-rw-r--r--ext/tk/lib/tkextlib/iwidgets/finddialog.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/tk/lib/tkextlib/iwidgets/finddialog.rb b/ext/tk/lib/tkextlib/iwidgets/finddialog.rb
index c46b972214..3d522e07c8 100644
--- a/ext/tk/lib/tkextlib/iwidgets/finddialog.rb
+++ b/ext/tk/lib/tkextlib/iwidgets/finddialog.rb
@@ -16,7 +16,7 @@ end
class Tk::Iwidgets::Finddialog
TkCommandNames = ['::iwidgets::finddialog'.freeze].freeze
WidgetClassName = 'Finddialog'.freeze
- WidgetClassNames[WidgetClassName] = self
+ WidgetClassNames[WidgetClassName] ||= self
def __strval_optkeys
super() + [