Skip coords that is not cached when add coords into zeroing_coords list. If we don't skip normal coords, non-cached, here, cached coords that own one or more non-cached ancestors would be fail to add into redraw_man_t::zeroing_coords list.

divert([-1])

define([_arg1], [$1])

define([_foreach], [ifelse([$2], [()], [],
[define([$1], _arg1$2)$3[]_foreach([$1], (shift$2), [$3])])])

define([foreach], [pushdef([$1])_foreach($@)popdef([$1])])

divert[]dnl