Resize nodes: Rebalance failed as per couchbase-server but operator event says rebalance is success

Scenario:

1. Deploying cluster with 2 nodes with data, index, query and 3 nodes with eventing service
2. Enabled eventing function with 3 buckets in cluster
3. Running goroutine to insert data to src bucket in backgroud
4. Initiate resize of analytics node to 4 nodes

After adding an extra eventing node, rebalance is started and failed with the reason,

Rebalance exited with reason {service_rebalance_failed,eventing, {badmatch, {error, {unknown_error, <<"Some apps are undergoing bootstrap">>}}}}

But operator generated the event as "rebalance completed"

Testcase name: TestEventingResizeCluster