c918f24edb
They were using INPUT_SPRING in a way which didn't allow it to easily redo the operator because INPUT_SPRING internally is stored as a ration between old value and new one and crease and bevel were converting this to value delta. Now made it special input type INPUT_SPRING_DELTA which is storing delta of the spring, meaning now values in the redo panel kind of makes sense -- they mean how much to add/remove to the crease/bevel weight. Expect to be no functional changes from interactive transform POV, just a bit more convenient to use redo panel.