patch 8.1.0573: cannot redefine user command without ! in same script commit https://github.com/vim/vim/commit/55d46913084745a48749d7ac4f48930852e1d87e Author: Bram Moolenaar <Bram@vim.org> Date: Sat Dec 8 16:03:28 2018 +0100 patch 8.1.0573: cannot redefine user command without ! in same script Problem: Cannot redefine user command without ! in same script Solution: Allow redefining user command without ! in same script, like with functions.

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}\")