From f8f1b0748e180418b23f6e27912f6270bf922c09 Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@rhe.jp>
Date: Thu, 3 Sep 2015 03:06:53 +0900
Subject: 2 つ目以降の PostBox はツイートが殻でなくても消せるように
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---
 core/mui/gtk_postbox.rb | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/core/mui/gtk_postbox.rb b/core/mui/gtk_postbox.rb
index 5e1129c1..efb4ce6c 100644
--- a/core/mui/gtk_postbox.rb
+++ b/core/mui/gtk_postbox.rb
@@ -257,8 +257,7 @@ module Gtk
     # フォーカスが外れたことによって削除して良いなら真を返す。
     def destructible?
       if(@options.has_key?(:postboxstorage))
-        return false if lonely? or (brothers - [self]).all?{ |w| !w.delegatable? }
-        post_is_empty?
+        !lonely? && (brothers - [self]).any? { |w| w.delegatable? }
       else
         true end end
 
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