Debugging this

Author: woody-apple

.github/workflows/build.yaml

@@ -20,7 +20,7 @@ on:
     workflow_dispatch:
 
 concurrency:
-    group: ${{ github.workflow }}-${{ (github.event_name == 'pull_request' && github.event.number) || (github.event_name == 'workflow_dispatch' && github.run_number) || github.sha }}
+    group: ${{ github.ref }}-${{ github.workflow }}-${{ (github.event_name == 'pull_request' && github.event.number) || (github.event_name == 'workflow_dispatch' && github.run_number) || github.sha }}
     cancel-in-progress: true
 
 jobs:
@@ -46,6 +46,14 @@ jobs:
                 net.ipv4.conf.all.forwarding=1 net.ipv6.conf.all.forwarding=1"
 
         steps:
+            - name: Dump GitHub context
+              env:
+                GITHUB_CONTEXT: ${{ toJSON(github) }}
+              run: echo "$GITHUB_CONTEXT"
+            - name: Dump Concurrency context
+              env:
+                CONCURRENCY_CONTEXT: ${{ github.ref }}-${{ github.workflow }}-${{ (github.event_name == 'pull_request' && github.event.number) || (github.event_name == 'workflow_dispatch' && github.run_number) || github.sha }}
+              run: echo "$CONCURRENCY_CONTEXT"
             - name: Checkout
               uses: actions/checkout@v2
               with: