I know canvases can be cloned once signed by combining them with a same-size canvas in a crafting interface, but could we also have an option to have that for paintings that are not signed yet?

It would be useful for a variety of reasons:

• On could make "templates" of sorts (like making a frame texture that you can then reuse for different paintings)
• It would be useful for making variants of an existing painting (like having a portrait but the eyes look the other way etc.) before signing them
• Could also be used for making a "backup" in case you wanna try some changes to the painting and several minutes later you notice you aren't happy with the change.