Meiosis duplicates class with Riot 9.1.2

[steevepay]

Hello,

I tried to upgrade an application to Riot 9.1.2. However, HTML classes from custom Riot components are duplicated everytime I call the function store.dispatch. Here is the result when I call one-time dispatch:

<c-button dropdown="true" class="btn input-group-btn btn input-group-btn tooltip tooltip-top dropdown-toggle dropdown-toggle"></c-button>

Result when I call two times dispatch:

<c-button dropdown="true" class="btn input-group-btn btn input-group-btn btn input-group-btn tooltip tooltip-top dropdown-toggle dropdown-toggle dropdown-toggle">

By disabling Meiosis, I got the expected result:

<c-button class="btn input-group-btn btn input-group-btn tooltip tooltip-top" data-tooltip="Show"></c-button>

Repository to replicate the issue:
https://github.com/steevepay/riot9-class-duplication

[steevepay]

Fixed on Riot v9.1.3