nsf.c - force again literal "-guard" in a "mixinreg" type to avoid potential confusions - Base nsfRelationSet for mixins on cmds rather than TclObjs to avoid confusions and duplication of guard detection logic - Add interp to NsfMixinregGet() and NsfFilterregGet() to be able to return error messages - return more error message from mixinreg converter - provide at least minimal support for "funny class names" (i.e. containing spaces) - FinalObjectDeletion: don't enforce namespace = 1 for cases with wierd namespace deletion order - extended regression test