pinnedなタブのドロップマーカーを修正

git-svn-id: http://www.cozmixng.org/repos/piro/treestyletab/trunk@6759 599a83e7-65a4-db11-8015-0010dcdd6dc2

content/treestyletab/treestyletab.js

@@ -421,6 +421,9 @@ var TreeStyleTabService = {
 						'false' :
 						'dt.effectAllowed = "none"'
 					)
+				).replace(
+					'sourceNode.parentNode == this &&',
+					'$& TSTTabBrowser.treeStyleTab.getTabFromEvent(event) == sourceNode &&'
 				)
 			);
 		}