Fix https://github.com/firefly-iii/firefly-iii/issues/8575

app/Api/V2/Controllers/Transaction/List/TransactionController.php

@@ -112,6 +112,7 @@ class TransactionController extends Controller
 
         return response()
             ->json($this->jsonApiList('transactions', $paginator, new TransactionGroupTransformer()))
-            ->header('Content-Type', self::CONTENT_TYPE);
+            ->header('Content-Type', self::CONTENT_TYPE)
+        ;
     }
 }

app/Helpers/Collector/GroupCollector.php

@@ -1083,7 +1083,8 @@ class GroupCollector implements GroupCollectorInterface
             // include budget ID + name (if any)
             ->withBudgetInformation()
             // include bill ID + name (if any)
-            ->withBillInformation();
+            ->withBillInformation()
+        ;
 
         return $this;
     }

app/Http/Controllers/JavascriptController.php

@@ -144,6 +144,7 @@ class JavascriptController extends Controller
 
         return response()
             ->view('v2.javascript.variables', $data)
-            ->header('Content-Type', 'text/javascript');
+            ->header('Content-Type', 'text/javascript')
+        ;
     }
 }

app/Http/Controllers/Rule/CreateController.php

@@ -159,7 +159,7 @@ class CreateController extends Controller
         $oldActions   = $this->getActionsForBill($bill);
 
         // restore actions and triggers from old input:
-        if (null !== $request->old()) {
+        if (null !== $request->old() && is_array($request->old()) && count($request->old()) > 0) {
             $oldTriggers = $this->getPreviousTriggers($request);
             $oldActions  = $this->getPreviousActions($request);
         }

app/Validation/FireflyValidator.php

@@ -824,7 +824,8 @@ class FireflyValidator extends Validator
                 ->where('trigger', $trigger)
                 ->where('response', $response)
                 ->where('delivery', $delivery)
-                ->where('url', $url)->count();
+                ->where('url', $url)->count()
+            ;
         }
 
         return false;