Update from https://github.com/itu-helper/data-updater/commit/177acc3… #9852

	name: Clear History

	on:
	push:

	jobs:
	refresh_lessons:
	runs-on: ubuntu-latest

	steps:
	# When we are pushing course plans and courses, there are two commits. If we don't wait,
	# the first clear history overrides the seconds push from the data-updater repo.
	- name: Sleep for 1 minute
	run: sleep 60s
	shell: bash

	# Clones the repo
	- name: Checkout Repo Content
	uses: actions/checkout@v2

	# Clears the history
	- name: Clear History
	run: \|
	git config --global user.email "data-updater@itu-helper.com"
	git config --global user.name "ITU Helper"
	git checkout --orphan latest_branch
	git add -A
	git commit -am "Cleared History."
	git branch -D main
	git branch -m main
	git push -f origin main

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