fix: exam state null check #866

	name: Default CI
	on: [push, pull_request]
	jobs:
	tests:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- name: Setup Nodejs Env
	run: echo "NODE_VER=`cat .nvmrc`" >> $GITHUB_ENV
	- name: Setup Nodejs
	uses: actions/setup-node@v3
	with:
	node-version: ${{ env.NODE_VER }}
	- name: Install dependencies
	run: npm ci
	- name: Validate package-lock.json changes
	run: make validate-no-uncommitted-package-lock-changes
	- name: Lint
	run: npm run lint
	- name: Test
	run: npm run test
	- name: Build
	run: npm run build
	- name: i18n_extract
	run: npm run i18n_extract
	- name: is-es5
	run: npm run is-es5
	- name: Coverage
	uses: codecov/codecov-action@v3
	- name: Extract branch name
	shell: bash
	run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
	id: extract_branch
	- name: Preview semantic-release version
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	NPM_TOKEN: ${{ secrets.SEMANTIC_RELEASE_NPM_TOKEN }}
	run: npx semantic-release --dry-run --branches=${{ steps.extract_branch.outputs.branch }}

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