When Zhonya's Hourglass saves a unit from death, does the unit keep its buffs?

Ruling: When Zhonya's Hourglass saves a unit from death, the unit keeps its buffs because the unit never actually dies.

Nuances:

• The unit is healed, exhausted, and recalled to base, but these actions do not remove buffs
• The card does not require banishing the unit or any other action that would cause buff removal