adds base and default ref for PR case

packages/warp-cache/package.json

@@ -1,6 +1,6 @@
 {
   "name": "github-actions.warp-cache",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "preview": true,
   "description": "Github action to use WarpBuild's in-house cache offering",
   "keywords": [

packages/warp-cache/src/internal/cacheHttpClient.ts

@@ -156,9 +156,18 @@ export async function getCacheEntry(
     case 'pull_request':
       {
         const pullPayload = github.context.payload as PullRequestEvent
+        // Adds PR head branch and base branch to restoreBranches
         restoreBranches.push(
           `refs/heads/${pullPayload?.pull_request?.head?.ref}`
         )
+        restoreBranches.push(
+          `refs/heads/${pullPayload?.pull_request?.base?.ref}`
+        )
+
+        // Adds default branch to restoreBranches
+        restoreBranches.push(
+          `refs/heads/${pullPayload?.repository?.default_branch}`
+        )
 
         // If head points to a different repository, add it to restoreRepos. We allow restores from head repos as well.
         if (