Qiskit / qiskit / 10811101172

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Commit Message

Fix an edge case in Sabre's release valve (#13114)

* Fix edge case in Sabre release valve

If a Sabre trial does not find a set of Swaps to route nodes, the "release valve" adds Swaps to route the two-qubit gate in between the the closest two qubits. In rare cases, this leads to _more_ than one gate being routable, which was not handled correctly previously.

Co-authored-by: Jake Lishman <jake.lishman@ibm.com>

* add reno and test

* Use sensible syntax

Co-authored-by: Kevin Hartman <kevin@hart.mn>

* Use sensible grammar

Co-authored-by: Kevin Hartman <kevin@hart.mn>

* clippy

* Check if the new test breaks CI

* Revert "Check if the new test breaks CI"

This reverts commit 01bcdc7ca.

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Co-authored-by: Jake Lishman <jake.lishman@ibm.com>
Co-authored-by: Kevin Hartman <kevin@hart.mn>

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