diff --git a/.github/workflows/sync.yml b/.github/workflows/sync.yml
index d89ef526c..060704788 100644
--- a/.github/workflows/sync.yml
+++ b/.github/workflows/sync.yml
@@ -4,12 +4,23 @@ on:
   push:
     branches:
       - main
+      - test-size-only
 
 jobs:
   sync:
     runs-on: ubuntu-latest
     steps:
+      - run: |
+          sudo apt-get update -y
+          sudo apt-get install -y git-restore-mtime
       - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - run: ls -al --full-time
+      - run: ls -al --full-time json-docs/ember/3.9.1/classes
+      - run: git restore-mtime
+      - run: ls -al --full-time
+      - run: ls -al --full-time json-docs/ember/3.9.1/classes
       - uses: jakejarvis/s3-sync-action@v0.5.1
         with:
           args: >-