Sloped rails can stay raised when adjacent rails are pulled upwards by a sticky piston

The bug

Using sticky pistons, minecart rails can be ''elevated'' or put into the up-going position. It works on any type of rail, as long as the middle one is a regular one. For example, imagine a view from above; powered rail - rail - detector rail.
Both the powered and the detector rail will be lifted whilst destroying the default one. It won't however work if all 3 rails are the same, except if all 3 are default rails.