setting return_buffers to true causes errors

[jjb]

I recently updated to the latest version (3.1.0) from 1.0.0. After doing this, exactly every other message that I emit is ignored. I bisected, and the version where this problem starts is 3.0.0. I bisected further and found that the bug was introduced in 73ce3ea. removing return_buffers: true from my code solved the problem.

So, maybe it's worth putting a warning in the changelog about this. I would contribute a PR but i don't know the technology well enough to word it correctly.

Thanks for a great project!

[picometer]

I had the same error and return_buffers: true is the problem as you posted. Thanks.

[darrachequesne]

I was unable to reproduce the issue, but I added a note here, what do you think?

[jjb]

Cool

how about to History.md as well