Can't return to main screen results

[jfschmakeit]

Pressing 'back' after a search does not return back to the start screen or clear the search results.

• Start app
• Search for 'blue'
• Open a map
• Use system back to return to search results
• Tap 'back' again

Expected:

• Return to initial start screen with a list of maps, clearing the search

Actual:

• Toolbar changes, but results are not cleared.