Draft PRs generate mails to ML?

[Thomas Stüfe]

Hi,

When working on https://github.com/openjdk/jdk/pull/839, I reverted the PR
back to draft to temporarily stop mail delivery, then pushed a new commit (
https://github.com/openjdk/jdk/pull/839/commits/8d86e25a89e7e7f7af463a6bc9a58cb57fb63d05
)

This caused a new mail though to hotspot-runtime-dev, even though the PR
was back in Draft state:
https://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2020-October/043132.html

Is this expected behaviour? I thought we do not generate mails when working
on Draft PRs.

Thanks, Thomas