## Problem From https://gitlab.com/gitlab-org/gitlab/issues/32837#note_293246134 >>> when using Parent/Child pipelines, interruptible doesn't cancel the child pipeline jobs. It only cancels the parent trigger job and leave the child pipeline running. The same issue occurs when canceling the parent pipeline from the UI, parent pipeline cancels however child remains running. >>> ## Solution We should also cancel the "interruptible" jobs of child pipelines when a new commit arrives in the same branch. ### Technical note * Now, `CancelPendingPipelines` looks for the pipelines that are only from `ci_sources`. * We need to modify `auto_cancelable_pipelines` to include child pipelines.