Update entry URIs when collection route is changed

src/Entries/Collection.php

@@ -10,6 +10,7 @@
 use Statamic\Data\ContainsCascadingData;
 use Statamic\Data\ExistsAsFile;
 use Statamic\Data\HasAugmentedData;
+use Statamic\Data\HasDirtyState;
 use Statamic\Events\CollectionCreated;
 use Statamic\Events\CollectionCreating;
 use Statamic\Events\CollectionDeleted;
@@ -34,7 +35,7 @@
 
 class Collection implements Arrayable, ArrayAccess, AugmentableContract, Contract
 {
-    use ContainsCascadingData, ExistsAsFile, FluentlyGetsAndSets, HasAugmentedData;
+    use ContainsCascadingData, ExistsAsFile, FluentlyGetsAndSets, HasAugmentedData, HasDirtyState;
 
     protected $handle;
     protected $routes = [];
@@ -484,6 +485,10 @@ public function save()
             }
         }
 
+        if ($this->isDirty('route')) {
+            Facades\Entry::updateUris($this);
+        }
+
         Facades\Collection::save($this);
 
         Blink::forget('collection-handles');
@@ -498,6 +503,8 @@ public function save()
             CollectionSaved::dispatch($this);
         }
 
+        $this->syncOriginal();
+
         return $this;
     }
 
@@ -928,4 +935,9 @@ public function augmentedArrayData()
             'handle' => $this->handle(),
         ];
     }
+
+    public function getCurrentDirtyStateAttributes(): array
+    {
+        return $this->fileData();
+    }
 }