Check_MK Werk 5529: Fixed accidentially cloning own visuals instead of builtin visuals

ID: 5529 Title: Fixed accidentially cloning own visuals instead of builtin visuals Component: Multisite Level: 1 Class: Bug fix Version: 1.5.0i1 It could happen that one wanted to clone a builtin visual (e.g. dashboard) but was cloning his own visual instead. This could happen if the user already has a visual with the exact name like the visual he tried to clone.