"No scope" warning for pull request closed events

I get the warning No scopes with read permission were found on the request. if I setup my workflow for triggering on pull request: close.
If I change the trigger to push, it works.

Is the problem that the head_branch of the Pull Request can’t read/write to the master’s cache?

An example config

on:
  pull_request:
    types: 
      - closed
    branches: 
      - master

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
      with:
        ref: master
        fetch-depth: 1
    - name: Cache node modules
      id: cache_node_modules
      uses: actions/cache@v1
      with: 
        path: node_modules
        key: ${{ runner.os }}-node-${{ hashFiles('package.json') }}

for the above config the cache is never used… I get the below warning

If I tweak the workflow to trigger on branch push, all is well

on:
  push:
    branches: 
      - master

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
      with:
        ref: master
        fetch-depth: 1
    - name: Cache node modules
      id: cache_node_modules
      uses: actions/cache@v1
      with: 
        path: node_modules
        key: ${{ runner.os }}-node-${{ hashFiles('package.json') }}

[jcornaz]

Ok. Thanks @joshmgross.

So if all pull_request events are supposed to work, there is a problem. I opened an issue for it: #208.

[joshmgross]

The issue of pull request re-runs has been fixed, see #208 for details.

With V2 of this action, all events with a GitHub ref are supported, so this issue should now be fixed. See https://github.com/actions/cache#whats-new for more info.