After changing Scheduled post back to Draft status, "Publish" button can cause confusion.

Expected behavior

It should be possible to change the status of a scheduled post back to a draft.

Actual behavior

The post was published instead.

Steps to reproduce the behavior

1. Create a new post and schedule it by giving it a future date
2. Open the post in the mobile app and try to switch its status to draft
3. Notice how it gets published

During one of my tests (not the one recorded below), I was able to switch the post to a draft by changing its date back to an older date, but this did not work consistently.

https://user-images.githubusercontent.com/4452464/143422107-c6f918f5-e764-4850-8ec4-987afa6a158e.mp4

Tested on [device], Android [version], WPAndroid [version]

App version: alpha-330
Device: One Plus Nord2 5G + OsygenOS V11.3

This is closely related to https://github.com/wordpress-mobile/WordPress-Android/issues/11393 and https://github.com/wordpress-mobile/WordPress-Android/issues/12344

Start by reproducing the scheduled-post status change using the Android app and the steps in the issue. Trace the status transition and Publish action to determine why switching to Draft publishes the post; done means a scheduled post can reliably return to Draft without being published.