To bend it farther one of two things must happen.
1. An outside object presses on it such as pushing it up against a tree or some immoveable object.
2. Putting the FEL in a situation where forces are exerted on the cylinder beyond it's hydraulic capability. This could be done by backdragging with the front tires of the tractor off the ground and moving in reverse. Or using a tree puller or grapple clamping onto an immoveable object with the attachment rolled forward and moving the tractor rearward.
If these outside forces are never applied it won't bend any farther. Outside forces were involved to bend it the first time. The cylinder, thru it's hydraulics, didn't do that.