:navigate: command and test feature

.gitignore

@@ -1,4 +1,5 @@
 __pycache__
+*.py~
 *.pyc
 *.swp
 /build

qutebrowser/browser/commands.py

@@ -428,7 +428,9 @@ class CommandDispatcher:
             new_url = urlutils.incdec_number(url, incdec, segments=segments)
         except urlutils.IncDecError as error:
             raise cmdexc.CommandError(error.msg)
+        url.setFragment(None)        
         self._open(new_url, tab, background, window)
+        
 
     def _navigate_up(self, url, tab, background, window):
         """Helper method for :navigate when `where' is up.

tests/integration/features/navigate.feature

@@ -38,6 +38,11 @@ Feature: Using :navigate
         And I run :navigate next
         Then the error "No forward links found!" should be shown
 
+    Scenario: Navigating to next page to a fragment
+        When I open data/navigate#fragment
+        And I run :navigate next
+        Then data/navigate/next.html should be loaded
+
     # increment/decrement
 
     Scenario: Incrementing number in URL