When Zhonya's Hourglass is destroyed to prevent a unit from dying, does the unit retain damage marked on it when it is recalled and exhausted?

Ruling: No, the unit does not retain the damage. Zhonya's Hourglass was errata'd to explicitly heal the unit when it is recalled and exhausted.

Sequence:

• Icathian Rain triggers resolve, marking damage on the unit
• When lethal damage would be dealt, Zhonya's Hourglass triggers
• Zhonya's Hourglass is destroyed instead of the unit dying
• The unit is recalled to the base and exhausted
• The unit is healed (damage is removed)