diff --git a/400_xowa/src/gplx/xowa/Xowe_wiki.java b/400_xowa/src/gplx/xowa/Xowe_wiki.java
index 5f4c4d71b..6833f8b43 100644
--- a/400_xowa/src/gplx/xowa/Xowe_wiki.java
+++ b/400_xowa/src/gplx/xowa/Xowe_wiki.java
@@ -212,6 +212,12 @@ public class Xowe_wiki implements Xow_wiki, Gfo_invk, Gfo_evt_itm {
 			}
 		}
 	}
+	private boolean init_once_done = false;
+	public void Init_once() {
+		if (init_once_done) return;
+		init_once_done = true;
+		app.Addon_mgr().Load_by_wiki(this);
+	}
 	private void Init_wiki(Xoue_user user) {	// NOTE: (a) one-time initialization for all wikis; (b) not called by tests
 		if (init_in_process) {
 			app.Usr_dlg().Log_many("", "", "wiki.init: circular call canceled: ~{0}", domain_str);
@@ -254,7 +260,7 @@ public class Xowe_wiki implements Xow_wiki, Gfo_invk, Gfo_evt_itm {
 		init_in_process = false;
 //			app.Api_root().Wikis().Get(domain_bry).Subscribe(this);
 		app.Site_cfg_mgr().Load(this);
-		app.Addon_mgr().Load_by_wiki(this);
+		Init_once();
 		ctg_pagebox_wtr.Init_by_wiki(this);
 		ctg_catpage_mgr.Init_by_wiki(this);
 
diff --git a/400_xowa/src/gplx/xowa/wikis/Xowv_wiki.java b/400_xowa/src/gplx/xowa/wikis/Xowv_wiki.java
index cf698f5ef..35934b7a3 100644
--- a/400_xowa/src/gplx/xowa/wikis/Xowv_wiki.java
+++ b/400_xowa/src/gplx/xowa/wikis/Xowv_wiki.java
@@ -116,10 +116,16 @@ public class Xowv_wiki implements Xow_wiki, Xow_ttl_parser, Gfo_invk {
 		data_mgr__core_mgr.Db__core().Tbl__ns().Select_all(ns_mgr);
 		data_mgr__core_mgr.Db__core().Tbl__site_stats().Select(stats);
 		html__hdump_mgr.Init_by_db(this);
-		app.Addon_mgr().Load_by_wiki(this);
+		Init_once();
 		ctg_pagebox_wtr.Init_by_wiki(this);
 		ctg_catpage_mgr.Init_by_wiki(this);
 	}
+	private boolean init_once_done = false;
+	private void Init_once() {
+		if (init_once_done) return;
+		init_once_done = true;
+		app.Addon_mgr().Load_by_wiki(this);
+	}
 	public void	Init_by_wiki__force() {init_needed = true; Init_by_wiki();}
 	public void Init_by_make(Xowd_core_db_props props, gplx.xowa.bldrs.infos.Xob_info_session info_session) {
 		data_mgr__core_mgr = new Xow_db_mgr(fsys_mgr.Root_dir(), this.domain_str);