Rebalance Guard Prevent Lost Bucket Recovery

Following steps reproduce the issue:

Run the start.gfsh in the attached example, which configures a geode system with a partitioned region and a gateway sender. So there are two regions, the manually created region, and the queue region.

Then run the example code, which will source ~400M data and 5 times amount of events into the system. All data are sourced into the system, no bucket lost, and no out of memory.

Then stop one of the server, and revoke the disk file of the server.

Then start the server, which will trigger a bucket recovery. After that, there will be part of secondary bucket lost.

gfsh>show metrics --region=/example-region

          | numBucketsWithoutRedundancy  | 63