fix: re-encode updatedAt in increase/decreaseDocumentAttribute when preserveDates is enabled

When preserveDates is true, getUpdatedAt() returns the decoded ISO 8601
format (e.g. 2026-03-10T10:33:54.726+00:00) which gets passed directly
to the adapter. MariaDB rejects this format. Re-encode to DB format
(Y-m-d H:i:s.v) before passing to the adapter.

Author: premtsd-code

src/Database/Database.php

@@ -7396,7 +7396,7 @@ public function increaseDocumentAttribute(
 
             $time = DateTime::now();
             $updatedAt = $document->getUpdatedAt();
-            $updatedAt = (empty($updatedAt) || !$this->preserveDates) ? $time : $updatedAt;
+            $updatedAt = (empty($updatedAt) || !$this->preserveDates) ? $time : DateTime::format(new \DateTime($updatedAt));
             $max = $max ? $max - $value : null;
 
             $this->adapter->increaseDocumentAttribute(
@@ -7496,7 +7496,7 @@ public function decreaseDocumentAttribute(
 
             $time = DateTime::now();
             $updatedAt = $document->getUpdatedAt();
-            $updatedAt = (empty($updatedAt) || !$this->preserveDates) ? $time : $updatedAt;
+            $updatedAt = (empty($updatedAt) || !$this->preserveDates) ? $time : DateTime::format(new \DateTime($updatedAt));
             $min = $min ? $min + $value : null;
 
             $this->adapter->increaseDocumentAttribute(

tests/e2e/Adapter/Scopes/DocumentTests.php

@@ -1537,6 +1537,32 @@ public function testIncreaseArrayAttribute(Document $document): void
         }
     }
 
+    /**
+     * @depends testIncreaseDecrease
+     */
+    public function testIncreaseDecreasePreserveDates(Document $document): void
+    {
+        /** @var Database $database */
+        $database = $this->getDatabase();
+
+        $database->setPreserveDates(true);
+
+        $before = $database->getDocument('increase_decrease', $document->getId());
+        $updatedAt = $before->getUpdatedAt();
+
+        $database->increaseDocumentAttribute('increase_decrease', $document->getId(), 'increase', 1);
+
+        $after = $database->getDocument('increase_decrease', $document->getId());
+        $this->assertSame($updatedAt, $after->getUpdatedAt());
+
+        $database->decreaseDocumentAttribute('increase_decrease', $document->getId(), 'decrease', 1);
+
+        $after = $database->getDocument('increase_decrease', $document->getId());
+        $this->assertSame($updatedAt, $after->getUpdatedAt());
+
+        $database->setPreserveDates(false);
+    }
+
     /**
       * @depends testCreateDocument
       */