qiskit/releasenotes/notes/0.19/fix-hoare-optimizer-0ef5ac3...

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fixes:
- |
Fixed a bug in the Hoare optimizer transpilation pass where it could attempt
to remove a gate twice if it could be separately combined with both its
predecessor and its successor to form the identity. Refer to `#7271
<https://github.com/Qiskit/qiskit-terra/issues/7271>`__ for more details.