qiskit/releasenotes/notes/1.2/extract-standard-parametric...

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---
fixes:
- |
Parametric controlled standard-library gates (such as :class:`.CRXGate`) will now get correctly
extracted to a Rust-space standard gate when using :meth:`.QuantumCircuit.append` and the gate
object. Previously there was a discrepancy where using the :meth:`.QuantumCircuit.crx` method
would cause a correct extraction in Rust space, but the :meth:`~.QuantumCirucit.append` form
would not. The bug should generally not have caused any unsoundness from Python.