Flat-mode & non-mutltiple

[piotrkabacinski]

Hi, is there a recommended solution to solve a problem using flat-mode & non multiple selection?

<treeselect
  ...
  :multiple="false"
  :flat="true"
/>

The goal is to be able to select only one option, including node. This props configuration seems to work, but it causes a warning (using console.error for some reason): [Vue-Treeselect Warning] You are using flat mode. But you forgot to add "multiple=true"?.

I searched existing issues (opened and closed) but I've not found any related to this case. If there's such as, I'll be thankful for a hint.

[z3d909]

@piotrkabacinski you can check #405