the title of page store_locator changes according to the menu item title changes

Hello,

Title of page store_locator gets changed if we add some menu item ie.

In main menu I add some item named "Go to our Store Locator",
When I visit to the page store_locator I see the title of page gets changed to the same even when I have set it to be "Store Locator" on configuration page --> admin/config/search/google_store_locator

I have checked the code and also tried hook_menu_alter but with no result.

Kindly review.
Thanks,
Himanshu