the 'lock aspect ratio' is not satisfactory.
its like a bug
if you want to crop a portion of your project as an image with a different aspect ratio. you need to be able to lock this new aspect
because you need to have the option to scale within this new aspect.
so you need to change what the lock aspect does: it should lock any customset aspect set in the croptool
because now it always snaps to the current aspect, this makes no sence because you can already get that by clicking reset.