Promise from echo typing animation is not resolved

[jcubic]

Issue summary

When you echo Promise and after echo typing animation that second echo promise is not resolved

Expected behavior

I expect the promise to be resolved

Actual behavior

The promise is not resolved

Steps to reproduce

1. Open https://codepen.io/jcubic/pen/mdXvMzR?editors=0010
2. it should print "DONE"

Additional notes

The problem is with delayed commands (echo_delay array) when echo is waiting, it pushes the typing animation command to the delay array, but the original promise (deferred) is lost and is never resolved. Typing animation is resolving the wrong promise.