Default Value for Balloon-Selector not applied if the field is added via addTabFields()

[LordRazen]

Since there wasnt any reply to my thread in the october talk forum, I guess this is really a bug so I link it here:

https://talk.octobercms.com/t/default-value-for-balloon-selector-not-applied-if-the-field-is-added-via-addtabfields/2188