[6.x] Fix Bard set disappearing after save (#14956)

Author: eminos

resources/js/components/fieldtypes/bard/BardFieldtype.vue

@@ -448,7 +448,7 @@ export default {
             const content = this.valueToContent(value);
 
             if (JSON.stringify(content) !== JSON.stringify(oldContent)) {
-                this.editor.commands.clearContent();
+                this.editor.commands.clearContent(false);
                 this.editor.commands.setContent(content, true);
             }
         },

tests/Fieldtypes/BardTest.php

@@ -631,6 +631,36 @@ public function it_removes_empty_nodes()
         ]);
     }
 
+    #[Test]
+    public function it_does_not_remove_sets_when_trimming_empty_nodes()
+    {
+        $content = [
+            ['type' => 'paragraph'],
+            [
+                'type' => 'set',
+                'attrs' => [
+                    'id' => 'test-set',
+                    'values' => [
+                        'type' => 'one',
+                    ],
+                ],
+            ],
+            ['type' => 'paragraph'],
+        ];
+
+        $this->assertEquals([
+            [
+                'type' => 'set',
+                'attrs' => [
+                    'id' => 'test-set',
+                    'values' => [
+                        'type' => 'one',
+                    ],
+                ],
+            ],
+        ], $this->bard(['remove_empty_nodes' => 'trim'])->process($content));
+    }
+
     #[Test]
     #[DataProvider('groupedSetsProvider')]
     public function it_preloads($areSetsGrouped)