diff --git a/src/ORM/ArrayList.php b/src/ORM/ArrayList.php
index a8436d450..ae0a8e865 100644
--- a/src/ORM/ArrayList.php
+++ b/src/ORM/ArrayList.php
@@ -583,7 +583,15 @@ class ArrayList extends ViewableData implements SS_List, Filterable, Sortable, L
 
         $firstRecord = $this->first();
 
-        return is_array($firstRecord) ? array_key_exists($by, $firstRecord) : property_exists($firstRecord, $by ?? '');
+        if (is_array($firstRecord)) {
+            return array_key_exists($by, $firstRecord);
+        }
+
+        if ($firstRecord instanceof ViewableData) {
+            return $firstRecord->hasField($by);
+        }
+
+        return property_exists($firstRecord, $by ?? '');
     }
 
     /**
diff --git a/src/ORM/DataObject.php b/src/ORM/DataObject.php
index 948800b71..b0514fc7b 100644
--- a/src/ORM/DataObject.php
+++ b/src/ORM/DataObject.php
@@ -1447,7 +1447,7 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
             $specification = $schema->fieldSpec(
                 $class,
                 $fieldName,
-                DataObjectSchema::DB_ONLY | DataObjectSchema::UNINHERITED
+                DataObjectSchema::UNINHERITED
             );
             if (!$specification) {
                 continue;
diff --git a/tests/php/ORM/ArrayListTest.php b/tests/php/ORM/ArrayListTest.php
index 8a13ee084..dc8a1ef05 100644
--- a/tests/php/ORM/ArrayListTest.php
+++ b/tests/php/ORM/ArrayListTest.php
@@ -6,6 +6,7 @@ use SilverStripe\Dev\SapphireTest;
 use SilverStripe\ORM\ArrayList;
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\Filterable;
+use SilverStripe\View\ArrayData;
 use stdClass;
 
 class ArrayListTest extends SapphireTest
@@ -1208,6 +1209,20 @@ class ArrayListTest extends SapphireTest
         $this->assertFalse($list->canFilterBy('Age'));
     }
 
+    public function testCanFilterByArrayData()
+    {
+        $list = new ArrayList(
+            [
+                new ArrayData(['Name' => 'Steve']),
+                new ArrayData(['Name' => 'Bob']),
+                new ArrayData(['Name' => 'John'])
+            ]
+        );
+
+        $this->assertTrue($list->canFilterBy('Name'));
+        $this->assertFalse($list->canFilterBy('Age'));
+    }
+
     public function testCanFilterByEmpty()
     {
         $list = new ArrayList();
diff --git a/tests/php/ORM/DBCompositeTest.php b/tests/php/ORM/DBCompositeTest.php
index 4afd93ff0..6f096628b 100644
--- a/tests/php/ORM/DBCompositeTest.php
+++ b/tests/php/ORM/DBCompositeTest.php
@@ -51,7 +51,8 @@ class DBCompositeTest extends SapphireTest
         $this->assertEquals(
             [
                 'MyMoney' => 'Money',
-                'OverriddenMoney' => 'Money'
+                'OverriddenMoney' => 'Money',
+                'DoubleMoney' => DBCompositeTest\DBDoubleMoney::class
             ],
             $schema->compositeFields(DBCompositeTest\TestObject::class)
         );
@@ -66,6 +67,7 @@ class DBCompositeTest extends SapphireTest
                 'MyMoney' => 'Money',
                 'OtherMoney' => 'Money',
                 'OverriddenMoney' => 'Money',
+                'DoubleMoney' => DBCompositeTest\DBDoubleMoney::class
             ],
             $schema->compositeFields(DBCompositeTest\SubclassedDBFieldObject::class)
         );
@@ -120,4 +122,22 @@ class DBCompositeTest extends SapphireTest
         $object = new DBCompositeTest\TestObject();
         $object->MyMoney->abc = 'def';
     }
+
+    public function testWriteToManipuationIsCalledWhenWritingDataObject()
+    {
+        $obj = DBCompositeTest\TestObject::create();
+        $obj->DoubleMoney = ['Amount' => 10, 'Currency' => 'CAD'];
+        $moneyField = $obj->dbObject('DoubleMoney');
+        $this->assertEquals(10, $moneyField->getAmount());
+
+        $obj->write();
+
+        // Custom money class should double the amount before writing
+        $this->assertEquals(20, $moneyField->getAmount());
+
+        // Note: these would fail since dbObject will return a new instance
+        // of the DoubleMoney field based on the initial values
+        // $this->assertSame($moneyField, $obj->dbObject('DoubleMoney'));
+        // $this->assertEquals(20, $obj->dbObject('DoubleMoney')->getAmount());
+    }
 }
diff --git a/tests/php/ORM/DBCompositeTest/DBDoubleMoney.php b/tests/php/ORM/DBCompositeTest/DBDoubleMoney.php
new file mode 100644
index 000000000..1952e3cec
--- /dev/null
+++ b/tests/php/ORM/DBCompositeTest/DBDoubleMoney.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace SilverStripe\ORM\Tests\DBCompositeTest;
+
+use SilverStripe\Dev\TestOnly;
+use SilverStripe\ORM\FieldType\DBMoney;
+
+class DBDoubleMoney extends DBMoney implements TestOnly
+{
+    public function writeToManipulation(&$manipulation)
+    {
+        // Duplicate the amount before writing
+        $this->setAmount($this->getAmount() * 2);
+
+        parent::writeToManipulation($manipulation);
+    }
+}
diff --git a/tests/php/ORM/DBCompositeTest/TestObject.php b/tests/php/ORM/DBCompositeTest/TestObject.php
index cfc74b2d9..10658c693 100644
--- a/tests/php/ORM/DBCompositeTest/TestObject.php
+++ b/tests/php/ORM/DBCompositeTest/TestObject.php
@@ -12,6 +12,7 @@ class TestObject extends DataObject implements TestOnly
     private static $db = [
         'Title' => 'Text',
         'MyMoney' => 'Money',
-        'OverriddenMoney' => 'Money'
+        'OverriddenMoney' => 'Money',
+        'DoubleMoney' => DBDoubleMoney::class,
     ];
 }