qiskit/releasenotes/notes/0.45/fix-qpy-nested-custom-contr...

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---
fixes:
- |
Fixed a bug in QPY serialization (:mod:`qiskit.qpy`) where multiple controlled custom gates in
a circuit could result in an invalid QPY file that could not be parsed. Fixed `#9746
<https://github.com/Qiskit/qiskit-terra/issues/9746>`__.