Empty configurationGroupIds transmitted for each configurationGroupKey

Steps to reproduce

Define configurationGroupKeys not as array, but as configurationGroup object:

configseeder:
  client:
    refreshCycle: 5000
    serverUrl: "https://demo.configseeder.com"
    configurations:
      - key: "java-client"
    environmentKey: "DEV"
    tenantKey: "democlient"
    labels: [ "spring-boot" ]
    connectTimeOut: 3000

This works well:

configseeder:
  client:
    refreshCycle: 5000
    serverUrl: "https://demo.configseeder.com"
    configurationGroupKeys: "java-client"
    environmentKey: "DEV"
    tenantKey: "democlient"
    labels: [ "spring-boot" ]
    connectTimeOut: 3000