patch 8.1.2308: deleting text before zero-width textprop removes it Commit: https://github.com/vim/vim/commit/ecafcc15ca92ecb9c6b41dbb3b0fcdf89c9eff69 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Nov 16 20:41:51 2019 +0100 patch 8.1.2308: deleting text before zero-width textprop removes it Problem: Deleting text before zero-width textprop removes it. Solution: Keep zero-width textprop when deleting text.

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}\")