patch 8.2.4215: illegal memory access when copying lines in Visual mode Commit: https://github.com/vim/vim/commit/dc5490e2cbc8c16022a23b449b48c1bd0083f366 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jan 25 13:52:53 2022 +0000 patch 8.2.4215: illegal memory access when copying lines in Visual mode Problem: Illegal memory access when copying lines in Visual mode. Solution: Adjust the Visual position after copying lines.

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}\")