Fix CommutationChecker for 2q Pauli rotations
#13762
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Cryoris
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stable backport potential
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Summary
Fixes #13742.
Details and comments
Fix a bug
CommutationCheckerfor[2q Pauli rotations, a gate that is not in the cache], such as[RXX, U]. The issue was that the parameters of the Pauli rotations were set to[]because we assumed we can find the relation in the cache. However that's obviously not true, as there are gates that are neither rotations, nor in the cache.