commit https://github.com/vim/vim/commit/be83b73ddb2ee8297037166d243f72e3423a3ce3 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Aug 25 14:21:19 2015 +0200 patch 7.4.832 Problem: $HOME in is expanded too early. Solution: Skip over when expanding environment names.

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}\")