snap / selection the deformation bones of my bird to the cursor does not work as expected I'm following the piero training course video tutorial and I reached the rigging stage (for who has already completed the tutorial,I'm on the  "23_piero_rigging_wing-part_1" on minute 31:00). 

I'm trying to rig the wing of the bird. This is what happens to me when I do "snap / selection" the deformation bones of my bird to the cursor :

what happens to my bird

instead,this is what should happen (you will see only a little part of the full video) :

this is what should happens

Can someone tell me why ?
This seems to be an unexpected behavior.


If you select the bones in pose mode, then switch to edit mode :





If you select the bones in edit mode :