So it seems your tree in Vue7 is closer than in Vue6, am I right? I think it is just because the tree is selected it appears closer, notion of distance is cancelled as long as the tree is selected.
Just to be sure, check in the numerics tab the location of the camera, and the location of the tree. I think nothing has moved in your scene, it's just a visual thing. Ig the tree is not selected, does it look the same as in Vue6?