Fix crash when showing lock for the second time with custom select input

src/__tests__/engine/classic.test.js

@@ -0,0 +1,23 @@
+const getClassic = () => require('engine/classic').default;
+
+describe('Classic Engine', () => {
+  beforeEach(() => {
+    jest.mock('connection/database/index', () => ({
+      resolveAdditionalSignUpFields: m => ({ ...m, resolveAdditionalSignUpFields: true }),
+      overrideDatabaseOptions: m => ({ ...m, overrideDatabaseOptions: true })
+    }));
+    jest.mock('sync', () => ({
+      isSuccess: () => false
+    }));
+  });
+  test('willShow calls `resolveAdditionalSignUpFields`', () => {
+    const classic = getClassic();
+    const model = classic.willShow(model, {});
+    expect(model.resolveAdditionalSignUpFields).toBe(true);
+  });
+  test('willShow calls `overrideDatabaseOptions`', () => {
+    const classic = getClassic();
+    const model = classic.willShow(model, {});
+    expect(model.overrideDatabaseOptions).toBe(true);
+  });
+});

src/engine/classic.js

@@ -14,7 +14,8 @@ import {
   hasInitialScreen,
   hasScreen,
   initDatabase,
-  overrideDatabaseOptions
+  overrideDatabaseOptions,
+  resolveAdditionalSignUpFields
 } from '../connection/database/index';
 import {
   defaultEnterpriseConnection,
@@ -151,6 +152,7 @@ class Classic {
 
   willShow(m, opts) {
     m = overrideDatabaseOptions(m, opts);
+    m = resolveAdditionalSignUpFields(m);
     if (isSuccess(m, 'client')) {
       m = validateAllowedConnections(m);
     }