Restore workflow overlap guard for exception jobs

Author: durable-workflow-ops

src/Exception.php

@@ -13,6 +13,7 @@
 use Illuminate\Support\Facades\Cache;
 use Throwable;
 use Workflow\Exceptions\TransitionNotFound;
+use Workflow\Middleware\WithoutOverlappingMiddleware;
 use Workflow\Models\StoredWorkflow;
 use Workflow\Models\StoredWorkflowLog;
 use Workflow\Serializers\Serializer;
@@ -81,7 +82,14 @@ public function handle()
 
     public function middleware()
     {
-        return [];
+        return [
+            new WithoutOverlappingMiddleware(
+                $this->storedWorkflow->id,
+                WithoutOverlappingMiddleware::WORKFLOW,
+                0,
+                15
+            ),
+        ];
     }
 
     private function shouldPersistAfterProbeReplay(): bool

tests/Unit/ExceptionTest.php

@@ -21,6 +21,7 @@
 use Tests\Fixtures\TestWorkflow;
 use Tests\TestCase;
 use Workflow\Exception;
+use Workflow\Middleware\WithoutOverlappingMiddleware;
 use Workflow\Models\StoredWorkflow;
 use Workflow\Serializers\Serializer;
 use Workflow\States\WorkflowRunningStatus;
@@ -34,7 +35,13 @@ public function testMiddleware(): void
             'Test exception'
         ));
 
-        $this->assertSame([], $exception->middleware());
+        $middleware = collect($exception->middleware())
+            ->values();
+
+        $this->assertCount(1, $middleware);
+        $this->assertSame(WithoutOverlappingMiddleware::class, $middleware[0]::class);
+        $this->assertSame(WithoutOverlappingMiddleware::WORKFLOW, $middleware[0]->type);
+        $this->assertSame(15, $middleware[0]->expiresAfter);
     }
 
     public function testExceptionWorkflowRunning(): void