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-rw-r--r--ext/tk/lib/tk/variable.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/ext/tk/lib/tk/variable.rb b/ext/tk/lib/tk/variable.rb
index b73a4677da..126832eda4 100644
--- a/ext/tk/lib/tk/variable.rb
+++ b/ext/tk/lib/tk/variable.rb
@@ -1346,7 +1346,7 @@ end
if @trace_opts == nil
TkVar_CB_TBL[@id] = self
- @trace_opts = opts
+ @trace_opts = opts.dup
if USE_OLD_TRACE_OPTION_STYLE
Tk.tk_call_without_enc('trace', 'variable',
@id, @trace_opts, 'rb_var ' << @id)
@@ -1392,7 +1392,7 @@ end
if @trace_opts == nil
TkVar_CB_TBL[@id] = self
- @trace_opts = opts
+ @trace_opts = opts.dup
if USE_OLD_TRACE_OPTION_STYLE
Tk.tk_call_without_enc('trace', 'add', 'variable',
@id, @trace_opts, 'rb_var ' << @id)