patch 8.1.0300: the old window title might be freed twice commit https://github.com/vim/vim/commit/d8f0cef2bdbdc15d7906f991725e09e67c97cf7e Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 19 22:20:16 2018 +0200 patch 8.1.0300: the old window title might be freed twice Problem: The old window title might be freed twice. (Dominique Pelle) Solution: Do not free "oldtitle" in a signal handler but set a flag to have it freed later.

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}\")