[5.x] Account for custom fields when checking if entry URIs should be updated (#13859)

Author: duncanmcclean

src/Entries/Entry.php

@@ -416,7 +416,7 @@ public function save()
 
         $this->taxonomize();
 
-        if ($this->isDirty('slug')) {
+        if ($this->shouldUpdateUris()) {
             optional(Collection::findByMount($this))->updateEntryUris();
             $this->updateChildPageUris();
         }
@@ -448,6 +448,21 @@ public function save()
         return true;
     }
 
+    private function shouldUpdateUris(): bool
+    {
+        if (! $this->route()) {
+            return false;
+        }
+
+        $antlersRoute = preg_replace_callback('/{\s*([a-zA-Z0-9_\-]+)\s*}/', function ($match) {
+            return "{{ {$match[1]} }}";
+        }, $this->route());
+
+        return collect(Antlers::identifiers($antlersRoute))
+            ->filter(fn (string $identifier) => $this->isDirty($identifier))
+            ->isNotEmpty();
+    }
+
     private function updateChildPageUris()
     {
         $collection = $this->collection();