We only unbind the current redisConnectionFactory from the current thread if the transaction is not active anymore.
Previously we performed the unbinding in RedisTemplate.execute(RedisCallback, boolean, boolean) overtime which lead to the fact that the next redis operation within the same transaction used a different redis connection, which could lead to exhaustion of the connection pool.
We also ensure that we correctly unbind the RedisConnectionFactory resource from the TransactionSynchronizationManager on transaction completion in RedisTransactionSynchronizer.afterCompletion(int).
Added test case supplied from issue.
Original pull request: #134.
d696a2feff