Index: openacs-4/packages/acs-lang/tcl/locale-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-lang/tcl/locale-procs.tcl,v
diff -u -r1.51.2.9 -r1.51.2.10
--- openacs-4/packages/acs-lang/tcl/locale-procs.tcl	22 Jul 2020 11:49:08 -0000	1.51.2.9
+++ openacs-4/packages/acs-lang/tcl/locale-procs.tcl	16 Feb 2021 02:23:57 -0000	1.51.2.10
@@ -235,7 +235,7 @@
     db_dml set_enabled_p { update ad_locales set enabled_p = :enabled_p where locale = :locale }
 
     # Flush caches
-    unset -nocomplain ::acs::cache::acs-lang.system_get_locales
+    acs::per_thread_cache flush -pattern acs-lang.system_get_locales
     util_memoize_flush_regexp {^lang::util::default_locale_from_lang_not_cached}
     util_memoize_flush_regexp {^lang::system::get_locales}
     util_memoize_flush_regexp {^lang::system::get_locale_options}