Jonathan Desrosiers 10b258f61c Build/Test Tools: Prevent error when workflows run for new branches and tags.
This fixes a JavaScript error in the Slack notifications workflow. This was causing the first workflow run for each workflow in a new branch or tag to be reported as a failure, even if the important parts of the workflow succeed.

When running a workflow for the first time, a default of `failure` is now used for the previous outcome. This will trigger a success notification to be sent to report successful branching/tagging.

Props davidbaumwald.
Fixes #54742.

git-svn-id: https://develop.svn.wordpress.org/trunk@53077 602fd350-edb4-49c9-b593-d223f7449a82
2022-04-05 13:18:53 +00:00
..
2021-03-01 16:56:08 +00:00