Attach options for attach tracks do not work with additive transform sections

Attach options don't work for additive blend types (Additive, Relative and Additive From Base)

1. Create a sequence
2. Add a cube and a sphere to the sequence
3. Move them away from the origin, and each other
4. Change the cube's transform section's blend type to additive from base (this repros with additive and relative too)
5. Go to the add menu for an attach track and set the Attach Option to Preserve Current
6. Go back and add an attach track attaching it to the sphere

RESULT

The cube moves. Compare to absolute transforms.