Duplicate messages

Hello,

When I have a Botpress widget opened multiple times (across several tabs/windows), the welcome message comes as many times as they are opened widgets.

Example:
I have 2 widgets opened, and I open a 3rd one.
The welcome message appears a 1st time, then messages are cleaned, then the welcome message appears a 2nd time, then messages are cleared once again, and finally the welcome message appears a 3rd time and I can discuss with the bot.

I noticed that this repetition occurs as many times as they are widgets open.

How to prevent this behavior ?