prevent panic when RootSpan not collected yet #5736

	name: needs/changelog

	on:
	pull_request:
	types:
	- opened
	- synchronize
	- labeled
	- unlabeled

	permissions:
	contents: read
	pull-requests: write

	jobs:
	check-for-changelog:
	if: contains(github.event.pull_request.labels.*.name, 'needs/changelog')
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Fetch refs
	run: \|
	git fetch origin $GITHUB_BASE_REF:$GITHUB_BASE_REF
	git fetch origin $GITHUB_REF:$GITHUB_REF

	- name: Check if PR needs a changelog
	id: check
	run: \|
	set -x
	shopt -s globstar

	diff=$(git diff --name-only $GITHUB_BASE_REF...$GITHUB_REF -- **/.changes/unreleased)
	diffReturn=$?
	if [ $diffReturn -ne 0 ]; then
	exit $diffReturn
	fi

	if [[ -z "$diff" ]]; then
	echo "Changelog is required, but was not created."
	exit 1
	else
	echo "Changelog exists."
	fi

	- name: Add comment
	uses: thollander/actions-comment-pull-request@v2
	if: always() && github.event.action == 'labeled' && steps.check.outcome != 'success'
	with:
	message: \|
	This PR has been marked with `needs/changelog`, but no changelog has been created.

	Run `changie new` to generate one (see [CONTRIBUTING.md](https://github.com/dagger/dagger/blob/main/CONTRIBUTING.md) for details).

Provide feedback