nemo-view.c: Move call added to last commit to nemo_view_stop_loading.

real_update_menus can get called after the menu is showing as a result
of nemo_file_get_volume_free_space() being used to update the bottom
status bar. This only happens if the free space changes, however this
ends up happening frequently due to logging and other things.

This can end up removing the extension items just after the menu
becomes visible.

Author: mtwebster

src/nemo-view.c

@@ -9606,7 +9606,6 @@ update_configurable_context_menu_items (NemoView *view)
 static void
 real_update_menus (NemoView *view)
 {
-    GtkUIManager *ui_manager;
 	GList *selection, *l;
 	gint selection_count;
 	const char *tip, *label;
@@ -10036,11 +10035,6 @@ real_update_menus (NemoView *view)
                                         !selection_contains_recent && !selection_contains_trash);
     }
 
-    ui_manager = nemo_window_get_ui_manager (view->details->window);
-    nemo_ui_unmerge_ui (ui_manager,
-                        &view->details->extensions_menu_merge_id,
-                        &view->details->extensions_menu_action_group);
-
     update_configurable_context_menu_items (view);
 
     nemo_file_list_free (selection);
@@ -10610,6 +10604,15 @@ nemo_view_stop_loading (NemoView *view)
 {
 	g_return_if_fail (NEMO_IS_VIEW (view));
 
+    if (view->details->window) {
+        GtkUIManager *ui_manager;
+
+        ui_manager = nemo_window_get_ui_manager (view->details->window);
+        nemo_ui_unmerge_ui (ui_manager,
+                            &view->details->extensions_menu_merge_id,
+                            &view->details->extensions_menu_action_group);
+    }
+
 	unschedule_display_of_pending_files (view);
 	reset_update_interval (view);