Unbreak autologin setting.

src/modules/displaymanager/main.py

@@ -261,19 +261,16 @@ def set_autologin(username, displaymanagers, default_desktop_environment, root_m
         if os.path.isfile(sddm_conf_path):
             sddm_config.read(sddm_conf_path)
 
-        autologin_section = {}
+        if 'Autologin' not in sddm_config:
-        if 'Autologin' in sddm_config:
+            sddm_config.add_section('Autologin')
-            autologin_section = sddm_config['Autologin']
 
         if do_autologin:
-            autologin_section['User'] = username
+            sddm_config.set('Autologin', 'User', username)
-        elif 'User' in autologin_section:
+        elif sddm_config.has_option('Autologin', 'User'):
-            del autologin_section['User']
+            sddm_config.remove_option('Autologin', 'User')
 
         if default_desktop_environment is not None:
-            autologin_section['Session'] = default_desktop_environment.desktop_file
+            sddm_config.set('Autologin', 'Session', default_desktop_environment.desktop_file)
-
-        sddm_config['Autologin'] = autologin_section
 
         with open(sddm_conf_path, 'w') as sddm_config_file:
             sddm_config.write(sddm_config_file, space_around_delimiters=False)