patch 8.0.0974: resetting a string option does not trigger OptionSet commit https://github.com/vim/vim/commit/8efa026a25b95de5598535ef62505282a8584a4b Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 20 15:47:20 2017 +0200 patch 8.0.0974: resetting a string option does not trigger OptionSet Problem: Resetting a string option does not trigger OptionSet. (Rick Howe) Solution: Set the origval.

TYPEMAP
VIWIN	T_VIOBJNOMUNGE
VIBUF	T_VIOBJNOMUNGE

INPUT
T_VIOBJNOMUNGE
	if (sv_isa($arg, \"${ntype}\")) {
	    IV tmp = SvIV((SV*)SvRV($arg));
	    $var = INT2PTR($type, tmp);
	    if (!tmp)
		croak(\"$ntype no longer exists\");
	}
	else
	    croak(\"$var is not of type ${ntype}\")