Duplicate planning scene msgs in solution #638
Description
I think part of #432 introduced the redundant msgs.
Setting a planning scene in the FixedState stage results in having identical scene msgs when filling the solution :
# Solution.msg
task_id
start_scene # identical
sub_trajectory[0]: scene_diff # identical (should be empty because the FixedState scene is stored in the start_scene ?)
sub_trajectory[1]: scene_diff # OK real diff