New root board is created when change the featured board

[RodriSanchez1]

This occurs when a user creates a new API communicator, logs in on another device, and changes the featured board. If the new communicator was created in the database without a defaultIncludedBoards value, that would be an empty array.

At the time of changing the featured board, we do this comprobation:

const defaultBoardsIncluded =
      activeCommunicator.defaultBoardsIncluded  //here we have a wrong truthy value 
      ||  fallbackInitialDefaultBoardsIncluded(activeCommunicator);

This causes the loss of the current root board on the user communicator

To be able to fix this bug, we need to add an exhaustive comprobation of the defaultIncludedBoards prop.

Suggestions:

const isValid = (activeCommunicator.defaultBoardsIncluded && activeCommunicator.defaultBoardsIncluded.length > 0) ? true : false;
//or
const isValid = !!(activeCommunicator.defaultBoardsIncluded && activeCommunicator.defaultBoardsIncluded.length);