If a unit is ready at a battlefield due to Ride the Wind, the opponent plays Rebuke, and then Flash is played in response, does the unit end up exhausted or ready at base?

Ruling: The unit ends up ready at base.

Nuances:

• Units become exhausted after a Standard Move because exhausting is the cost to perform a standard move
• Most other move effects (like Flash) leave the unit in whatever state it was already in