+ cur.recordUndo();
+ string arg = to_utf8(cmd.argument());
+ if (arg == "vspace custom")
+ arg = (space_.kind() == VSpace::LENGTH)
+ ? "vspace " + space_.length().asString()
+ : "vspace 1" + string(stringFromUnit(Length::defaultUnit()));
+ InsetVSpace::string2params(arg, space_);