Never ever click on "Schedule Post" on #Tusky app (probably #patchli also affected) if your server is #GoToSocial
I am investigating but it looks like when scheduling a post for mastodon server it works, tusky will talk to https://docs.joinmastodon.org/methods/scheduled_statuses/ and when getting the success status it will just complete.
On #GoToSocial the scheduled_statuses
API is not available, so #Tusky will then post the status with a future date, check the scheduled_statuses for verification, as it will not answer 200 it will then try to schedule again.
It will end up publishing indefinitely every 30 seconds, I made a post that was duplicated 80 times. (and as I am cross posting, haha it was also duplicated on other platforms)
I had to shutdown GtS and CrossPoster and then realized from my nginx logs that it was Tusky background process running on Android that was trying to post repeatelly.