Oclif process not exiting or returning

[Incede]

Expected behavior

keys:export --file-path /path/keys.json command should exit/return normally after creating the file

Actual behavior

A file keys.json is created but the command does not exit even after a substantial time period. Upon debugging there were also no errors reported inside the ExportCommand

Steps to reproduce

1. run the sample application from examples/dpos-mainchain ./bin/run start
2. execute keys:export --file-path /path/keys.json

Which version(s) does this affect? (Environment, OS, etc...)

branch feature/7315-keys

[shuse2]

2022-09-14T09:07:42.382Z DEBUG MacBook-Pro-2.fritz.box engine 11581 [sender=00618fb492] Received IPC request
2022-09-14T09:07:42.387Z INFO MacBook-Pro-2.fritz.box engine 11581 [status=success method=system_getMetadata id=1] Handled RPC request
2022-09-14T09:07:42.388Z DEBUG MacBook-Pro-2.fritz.box engine 11581 [sender=00618fb492] Received IPC request
2022-09-14T09:07:42.388Z INFO MacBook-Pro-2.fritz.box engine 11581 [status=success method=system_getSchema id=2] Handled RPC request
2022-09-14T09:07:42.388Z DEBUG MacBook-Pro-2.fritz.box engine 11581 [sender=00618fb492] Received IPC request
2022-09-14T09:07:42.389Z INFO MacBook-Pro-2.fritz.box engine 11581 [status=success method=system_getNodeInfo id=3] Handled RPC request
2022-09-14T09:07:42.390Z DEBUG MacBook-Pro-2.fritz.box engine 11581 [sender=00618fb493] Received IPC request
2022-09-14T09:07:42.391Z INFO MacBook-Pro-2.fritz.box engine 11581 [status=success method=system_getMetadata id=1] Handled RPC request
2022-09-14T09:07:42.391Z DEBUG MacBook-Pro-2.fritz.box engine 11581 [sender=00618fb493] Received IPC request
2022-09-14T09:07:42.391Z INFO MacBook-Pro-2.fritz.box engine 11581 [status=success method=system_getSchema id=2] Handled RPC request
2022-09-14T09:07:42.391Z DEBUG MacBook-Pro-2.fritz.box engine 11581 [sender=00618fb493] Received IPC request
2022-09-14T09:07:42.391Z INFO MacBook-Pro-2.fritz.box engine 11581 [status=success method=system_getNodeInfo id=3] Handled RPC request
2022-09-14T09:07:42.392Z DEBUG MacBook-Pro-2.fritz.box engine 11581 [sender=00618fb493] Received IPC request
2022-09-14T09:07:42.395Z INFO MacBook-Pro-2.fritz.box engine 11581 [status=success method=generator_getAllKeys id=4] Handled RPC request

It seems like 2 IPC client is created and probably one is not closed