Azure DevOps触发流水线无法获取对应触发构建工件的问题求助

我在运行Azure DevOps（ADO）流水线时遇到问题：使用DownloadPipelineArtifact任务无法下载触发当前流水线的构建所生成的工件。

需求是：流水线A生成工件，流水线B由A的成功构建触发，希望B的每一次运行（B1、B2、B3）分别对应获取A的对应构建（A1、A2、A3）生成的工件（a1、a2、a3）。ADO的DownloadPipelineArtifact@v2任务有一个specificBuildWithTriggering选项，理论上可实现此功能，但实际所有B的运行都下载最新的工件（如a3），而非对应触发构建的工件。

当前执行流程：

A1 --> a1 --> B1触发 --> 下载并使用a3（应为a1）
A2 --> a2 --> B2触发 --> 下载并使用a3（应为a2）
A3 --> a3 --> B3触发 --> 下载并使用a3（正确）

流水线A（生成工件） #

此流水线ID为XXXX，会保存runName参数值到工件中。

# pipeline A
trigger: none

parameters:
  - name: runName
    displayName: Tag name (run name)
    type: string
    default: test-tag

stages:
  - stage:
    displayName: Info
    jobs:
      - job: info
        displayName: Display info
        pool:
          vmImage: ubuntu-latest
        steps:
          - bash: |
              echo "This is triggering another pipeline"
              echo "Putting ${{ parameters.runName }} into $(System.DefaultWorkingDirectory)/runName"
              echo ${{ parameters.runName }} > $(System.DefaultWorkingDirectory)/runName
            displayName: 'Create runName file for publish'

          - publish: $(System.DefaultWorkingDirectory)/runName
            artifact: runName

流水线B（触发后获取工件） #

# pipeline B
trigger: none # do not start automatically unless specific trigger is defined below

resources:
  repositories:
    - repository: another-helper-repo
      type: git
      name: ourproject/repo1
      ref: refs/tags/sometag
    - repository: tenant
      type: git
      ref: refs/heads/main
      name: ourproject/repo2

  pipelines:
    - pipeline: a-trigger
      source: ourproject/A # the triggering pipeline name
      project: ourproject
      trigger: true

stages:
  - stage:
    jobs:
      - job: A
        steps:
          - task: DownloadPipelineArtifact@2
            inputs:
              buildType: 'specific'
              project: 'ourproject'
              definition: 'XXXX'   # triggering pipeline ID
              specificBuildWithTriggering: true  # use the build ID that has triggered you
              artifactName: '' # all artifacts
              targetPath: $(System.ArtifactsDirectory)
          - bash: |
              echo "Working..."
              echo "System.ArtifactsDirectory: $(System.ArtifactsDirectory) - listing :"
              ls -al $(System.ArtifactsDirectory)
              echo "runName value:"
              cat $(System.ArtifactsDirectory)/runName/runName
            name: Information

当流水线A多次运行（分别传入test1、test2、test3作为runName参数），触发的流水线B均获取到test3的值，而非对应触发构建的参数值。请问我哪里配置错误？

内容的提问来源于stack exchange，提问作者Maciej Rostański