How do YBCO superconductors react with hydrochloric acid?

[Mayhem]

If we consider YBCO 123, YBa₂Cu₃O_7-δ, what would the expected reaction if dissolved in aqeuous HCl? I have tried to find resources about this online, but the closest I got was related to Cl-containing YBCOs, and not actual reaction stoichiometry.

My intuition tells me the metal centers (Y, Ba) are not immediately affected as they are contained in the oxygen/copper cage. Rather, I'd expect products like copper chloride(s).

 

[Mayhem]

Update: It turns out it reacts to form Y³⁺, Ba²⁺, Cu²⁺ and Cu³⁺ ions as well as chloride and water.