feat: support bit-reversed sequences on the emulator #984
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Bit-reversed sequences require the use of a read/write transaction. Hibernate starts a second read/write transaction when it needs to fetch new identifiers, and this transaction is aborted when it is running on the emulator. The PooledBitReversedSequenceGenerator now solves this by rolling back that transaction after getting the sequence values. This is semantically equivalent to committing the transaction, as the state of the sequence is durably changed regardless whether the transaction is committed or rolled back.
Fixes #983