diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index 6787cff..e24467e 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -60,16 +60,13 @@ jobs:
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
+          submodules: recursive
           repository: nextcloud/server
           ref: ${{ matrix.server-versions }}
 
-      - name: Checkout submodules
-        shell: bash
-        run: |
-          auth_header="$(git config --local --get http.https://github.com/.extraheader)"
-          git submodule sync --recursive
-          git -c "http.extraheader=$auth_header" -c protocol.version=2 submodule update --init --force --recursive --depth=1
-          cd build/integration && composer require --dev phpunit/phpunit:~9
+      - name: Set up integration dependencies
+        working-directory: build/integration
+        run: composer require --dev phpunit/phpunit:~9
 
       - name: Checkout app
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
@@ -125,3 +122,17 @@ jobs:
         if: always()
         run: |
           cat data/nextcloud.log
+
+  summary:
+    permissions:
+      contents: none
+    runs-on: ubuntu-latest-low
+    needs: [integration]
+
+    if: always()
+
+    name: integration-summary
+
+    steps:
+      - name: Summary status
+        run: if ${{ needs.integration.result != 'success' }}; then exit 1; fi
diff --git a/lib/Operation.php b/lib/Operation.php
index 1fbd20e..45e2063 100644
--- a/lib/Operation.php
+++ b/lib/Operation.php
@@ -73,7 +73,7 @@ public function checkFileAccess(IStorage $storage, string $path, bool $isDir = f
 		$this->nestingLevel--;
 
 		if (!empty($match)) {
-			$e = new \RuntimeException('Access denied for path ' . $path . ' that is ' . ($isDir ? '' : 'not ') . 'a directory and matches rules: ' . json_encode($match));
+			$e = new \RuntimeException('Access denied for path ' . $path . ' that is ' . ($isDir ? '' : 'not ') . 'a directory and matches rules: ' . (string)json_encode($match));
 			$this->logger->debug($e->getMessage(), ['exception' => $e]);
 			// All Checks of one operation matched: prevent access
 			throw new ForbiddenException('Access denied by access control', false);