[AC-2513] Labels inside a TableViewRow fire click event twice the second time a window in memory is opened

Steps to reproduce: 1. Create a new application with the attached files 2. Launch the application 3. Tap "open window" 4. Tap the "Row 1" label in the resulting window *You should see one alert saying "click[object TiUiLabel]" 5. Tap the "back" button 6. Tap "open window" button again 7. Tap the "Row 1" label *You'll now see two identical alerts saying "click[object TiUiLabel]" Expected Behavior: *Label should only fire click event once Actual Behavior: *Label fires click event twice on second opening of the window Notes: *The is severe because it can cause errors with window navigation. For example, if clicking the label is supposed to open a window, the open event is fired twice in rapid succession. When the user then closes the window, two close events on the same window are called and the result will be a black screen that can only be escaped by force quitting the application. This is a blocking issue for our app and many users have reported this error. *This is a regression in Ti 3.0+. The same test case in 2.1.4 produces the expected behavior