Commits on Feb 22, 2023

1. Fix handling of simulator backends in BackendV2Converter (#9630) …

   This commit fixes some issues in the BackendV2Converter class around its
   usage wrapping BackendV1 based simulators (such as Qiskit Aer with the
   current release as of this commit 0.11.x). The BackendV2 converter was
   incorrectly handling some edge cases in Target creation with simulators
   that have ideal gates. The first issue was that the handling of ideal
   gates without any properties was incorrect and could not handle gates
   that took > 1 qubit. This has been corrected so the converter will work
   as expect. The second issue is the `online_date` field in the
   `BackendConfiguration` is optional and may not exist, especially on
   simulators which that field never really applies for. With these fixes
   the BackendV2Converter can be used to wrap BackendV1 simulators.
   
   Fixes #9562
   
   Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
   (cherry picked from commit 789707c)

   

   mtreinish authored and mergify[bot] committed Feb 22, 2023
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