Index: TODO
===================================================================
diff -u -r1d6fce4237af2c0a77067e6cbf041bea2c30c37d -r46f5a635968d0c3dfe4c81f80e4ac21350096394
--- TODO	(.../TODO)	(revision 1d6fce4237af2c0a77067e6cbf041bea2c30c37d)
+++ TODO	(.../TODO)	(revision 46f5a635968d0c3dfe4c81f80e4ac21350096394)
@@ -5121,6 +5121,8 @@
 - added flag -nocomplain to "/obj/ /prop/ unset ?-nocomplain?"
 - use "mixin|filter clear" instead of "mixin|filter unset"
 - name parameter option "slotset" instead of "slotassign"
+- have "filter|mixin clear" return the list of former|removed
+  filters|mixins.
 
 nsfObj.c:
 - allow to omit "-guard" within arguments to flag
@@ -5136,24 +5138,6 @@
 
 - finish nx-property reform (merge into master)
 
-- IDEA: have "filter|mixin clear" return the list of former|removed
-  filters|mixins to stash them in the caller context. simplifies
-  turning on|off scenarios (one instead of two calls):
-
-  set tmp [obj object filter clear]
-  # ... do work ...
-  obj object filter $tmp
-
-  or: clear & check whether mixins|filters were set in one step:
-
-  if {[length [obj object filter clear]]} {
-    # ... there were actually filter active, now removed
-  } else {
-    # ... attempted clearing, but nothing active ...
-  }
-
-  or: a combination of the two idioms ...
-
 - check deactivated tests in tests/serialize.test
   C(One), C(IgnoreAll), C(None2)
   and xlloc fix