How Can You Adjust Bone Roll Value Without Twisting and Deforming the Mesh? How can you adjust the bone roll value without twisting and deforming the mesh? If it does twist and deform can you reset the mesh to adjust to the new roll value of the bone?

For example I adjusted a finger bones roll to 250 so that the bone will go only follow the natural motion of a finger when extending in and out.

However after I did this the mesh around the bone its self was twisted. 
I tried deleting the vertex group and resetting it to the bone but after i made the new group and assigned it to the bone the mesh was still twisted. I tried resetting the bone roll with control-n to no avail.
You can unparent the mesh, roll the bone (in edit mode) then reparent the mesh, and it should work.