Fix loading of quickmarks with fuzzy URLs

qutebrowser/browser/commands.py

@@ -770,8 +770,7 @@ class CommandDispatcher:
             bg: Load the quickmark in a new background tab.
             window: Load the quickmark in a new window.
         """
-        urlstr = quickmarks.get(name)
-        url = QUrl(urlstr)
+        url = quickmarks.get(name)
         self._open(url, tab, bg, window)
 
     @cmdutils.register(instance='command-dispatcher', name='inspector',

qutebrowser/browser/quickmarks.py

@@ -108,8 +108,9 @@ def get(name):
         raise cmdexc.CommandError(
             "Quickmark '{}' does not exist!".format(name))
     urlstr = marks[name]
-    url = QUrl(urlstr)
-    if not url.isValid():
+    try:
+        url = urlutils.fuzzy_url(urlstr)
+    except urlutils.FuzzyUrlError:
         raise cmdexc.CommandError(
             "Invalid URL for quickmark {}: {} ({})".format(name, urlstr,
                                                            url.errorString()))