diff --git a/.github/workflows/pages.yaml b/.github/workflows/pages.yaml
index de10642..69c366d 100644
--- a/.github/workflows/pages.yaml
+++ b/.github/workflows/pages.yaml
@@ -26,6 +26,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           ref: data
+          fetch-depth: 0
 
       - name: Configure Pages
         uses: actions/configure-pages@v4
@@ -66,6 +67,13 @@ jobs:
           node tools/build_email_alert.js
           echo "should_send=$(cat reports/alert_should_send.txt | tr -d '\r\n')" >> "$GITHUB_OUTPUT"
 
+      - name: Debug alert outputs
+        shell: bash
+        run: |
+          set -euo pipefail
+          echo "alert_should_send=$(cat reports/alert_should_send.txt || true)"
+          echo "subject=$(cat reports/alert_subject.txt || true)"
+
       - name: Send email alert
         if: steps.alert.outputs.should_send == '1'
         uses: dawidd6/action-send-mail@v7