Fix :restart deleting the given --basedir

CHANGELOG.asciidoc

@@ -141,6 +141,7 @@ Fixed
 - Fixed crash when cancelling a download after doing `:prompt-open-download`
 - Fixed crash when writing a download to disk fails with
   `:prompt-open-download`.
+- Fixed `:restart` deleting the basedir when it was given with `--basedir`.
 
 v0.8.1
 ------

qutebrowser/app.py

@@ -539,8 +539,9 @@ class Quitter:
             argdict['session'] = session
             argdict['override_restore'] = False
         # Ensure :restart works with --temp-basedir
-        argdict['temp_basedir'] = False
-        argdict['temp_basedir_restarted'] = True
+        if self._args.temp_basedir:
+            argdict['temp_basedir'] = False
+            argdict['temp_basedir_restarted'] = True
 
         # Dump the data
         data = json.dumps(argdict)