Logs for a Matrixed PipelineTask does not include logs for all Fanned Out TaskRuns

Versions and Operating System

• Kubernetes version:

  Output of kubectl version:

Client Version: v1.25.4
Kustomize Version: v4.5.7
Server Version: v1.26.3

• Tekton Pipeline version:

  Output of tkn version or kubectl get pods -n tekton-pipelines -l app=tekton-pipelines-controller -o=jsonpath='{.items[0].metadata.labels.version}'

Client version: 0.31.1
Pipeline version: devel

• Operating System:

Mac OS 13.5

Expected Behavior

When fanning out a Matrixed PipelineTask I expect to see the logs for all of the TaskRuns created - for example, below we are echoing platform and browser for 9 combinations that are fanned out into 9 TaskRuns from the Matrixed PipelineRun - I expect when I get the pr logs, it would show the logs for all 9 TaskRuns:

[platforms-and-browsers : echo] linux and chrome
[platforms-and-browsers : echo] mac and chrome
[platforms-and-browsers : echo] windows and chrome
[platforms-and-browsers : echo] linux and safari
[platforms-and-browsers : echo] mac and safari
[platforms-and-browsers : echo] windows and safari
[platforms-and-browsers : echo] linux and firefox
[platforms-and-browsers : echo] mac and firefox
[platforms-and-browsers : echo] windows and firefox

apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: platform-browsers
  annotations:
    description: |
      A task that does something cool with platforms and browsers
spec:
  params:
    - name: platform
    - name: browser
  steps:
    - name: echo
      image: alpine
      script: |
        echo "$(params.platform) and $(params.browser)"
---
apiVersion: tekton.dev/v1beta1
kind: PipelineRun
metadata:
  generateName: matrixed-pr-
spec:
  serviceAccountName: "default"
  pipelineSpec:
    tasks:
      - name: platforms-and-browsers
        matrix:
          params:
            - name: platform
              value:
                - linux
                - mac
                - windows
            - name: browser
              value:
                - chrome
                - safari
                - firefox
        taskRef:
          name: platform-browsers

Actual Behavior

tkn pr logs output

[platforms-and-browsers : echo] linux and safari

Steps to Reproduce the Problem

1. Run the example yaml
2. View the logs

Additional Info

Reproduce the issue with the provided Matrixed PipelineRun YAML, then start from the tkn pr logs handling for matrixed PipelineTasks and their generated TaskRuns. Done means the command displays logs for all nine platform-and-browser combinations instead of only one; add or update coverage if the relevant test location is found.