fix: type option transform for checklists (#4779)

frontend/rust-lib/flowy-database2/src/services/field/type_options/text_type_option/text_type_option.rs

@@ -73,6 +73,7 @@ impl TypeOptionTransform for RichTextTypeOption {
       || transformed_field_type.is_multi_select()
       || transformed_field_type.is_number()
       || transformed_field_type.is_url()
+      || transformed_field_type.is_checklist()
     {
       Some(StrCellData::from(stringify_cell_data(
         cell,

frontend/rust-lib/flowy-database2/tests/database/field_test/test.rs

@@ -206,7 +206,7 @@ async fn grid_switch_from_multi_select_to_text_test() {
 // Test when switching the current field from Checkbox to Text test
 // input:
 //      check -> "Yes"
-//      unchecked -> ""
+//      unchecked -> "No"
 #[tokio::test]
 async fn grid_switch_from_checkbox_to_text_test() {
   let mut test = DatabaseFieldTest::new().await;
@@ -290,3 +290,24 @@ async fn grid_switch_from_number_to_text_test() {
 
   test.run_scripts(scripts).await;
 }
+
+/// Test when switching the current field from Checklist to Text test
+#[tokio::test]
+async fn grid_switch_from_checklist_to_text_test() {
+  let mut test = DatabaseFieldTest::new().await;
+  let field_rev = test.get_first_field(FieldType::Checklist);
+
+  let scripts = vec![
+    SwitchToField {
+      field_id: field_rev.id.clone(),
+      new_field_type: FieldType::RichText,
+    },
+    AssertCellContent {
+      field_id: field_rev.id.clone(),
+      row_index: 0,
+      from_field_type: FieldType::Checklist,
+      expected_content: "First thing".to_string(),
+    },
+  ];
+  test.run_scripts(scripts).await;
+}