Make `simulate` work on phases with ExplicitShooting

[robfalck]

Issue Type

• [x] Bug
• [ ] Enhancement
• [ ] Docs
• [ ] Miscellaneous

Description

There are some initialization issues with control values in ExplicitShooting phases when trying to use simulation to verify the accuracy of a solution.

Since ExplicitShooting is currently fixed-step only, it's still valuable to perform variable step simulation as a verification of the results.

Example

Using `dm.run_problem(p, simulate=True) with any ExplicitShooting case that uses controls should reproduce this issue.

Environment

N/A