diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 84753ab7..721c82be 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -425,6 +425,27 @@ jobs:
           exit 1
         shell:
           bash
+      - name: Run changed-files with dir_names
+        id: changed-files-dir-names-specific
+        uses: ./
+        with:
+          base_sha: d1c0ee4
+          sha: 4d04215
+          fetch_depth: 60000
+          dir_names: "true"
+          files: test/**
+      - name: Show output
+        run: |
+          echo '${{ toJSON(steps.changed-files-dir-names-specific.outputs) }}'
+        shell:
+          bash
+      - name: Check dir_names output
+        if: "!contains(steps.changed-files-dir-names-specific.outputs.all_changed_files, 'test')"
+        run: |
+          echo "Invalid output: Expected to include (test) got (${{ steps.changed-files-dir-names-specific.outputs.all_changed_files }})"
+          exit 1
+        shell:
+          bash
       - name: Run changed-files with forward slash separator
         id: changed-files-forward-slash
         uses: ./
diff --git a/diff-sha.sh b/diff-sha.sh
index 2dfd12c6..417ed52c 100644
--- a/diff-sha.sh
+++ b/diff-sha.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-set -euo pipefail
+set -euxo pipefail
 
 INITIAL_COMMIT="false"
 GITHUB_OUTPUT=${GITHUB_OUTPUT:-""}
@@ -134,7 +134,7 @@ else
   CURRENT_BRANCH=$GITHUB_HEAD_REF
 
   echo "Fetching remote refs..."
-  git fetch --no-tags -u --progress --deepen=40000
+  git fetch --no-tags -u --progress --deepen=40000 origin "$CURRENT_BRANCH":"$CURRENT_BRANCH"
   git fetch --no-tags -u --progress --depth="$INPUT_FETCH_DEPTH" origin "$TARGET_BRANCH":"$TARGET_BRANCH"
 
   echo "::debug::Getting HEAD SHA..."