Index: TODO
===================================================================
diff -u -r8c8969ab850d118f76305689bd95e980b8f4543f -r8f4072d4e6bb8bae0ab7ef7e0b78526ad7852453
--- TODO	(.../TODO)	(revision 8c8969ab850d118f76305689bd95e980b8f4543f)
+++ TODO	(.../TODO)	(revision 8f4072d4e6bb8bae0ab7ef7e0b78526ad7852453)
@@ -3958,7 +3958,14 @@
 - make ::nsf::log more robust for aolserver/naviserver, since ::ns_log is 
   not always around when an output is needed
 
+- serializer:
+  * make [::Serializer deepSerialize -ignoreVarsRE "" $o] behave like
+    [::Serializer deepSerialize $o], since learn@wu depends on that, and
+    a value for ignoreVarsRE of empty looks more like an omitted value than
+    a regular expression, that should match everything.
+  * extended regression test
 
+
 ========================================================================
 TODO: