Rename Symbol Under Cursor (wrong behavior)

Rename Symbol Under Cursor feature renames symbols not related to current class.

How to reproduce:

• Open editabletreemodel sample (<src>/examples/itemviews/editabletreemodel)
• Context menu on updateActions() slot declaration (mainwindow.h:61) and rename it to currentChanged() with Rename Symbol Under Cursor;
• At same declaration (now it's currentChanged) rename it back to updateActions()

Result:
At mainwindow.cpp:66 currentChanged signal is renamed to updateActions, but the signal belongs to QTreeView, not to MainWindow.