onLinkAccount not triggered when linking anonymous user with social account (BetterAuth v1.2.12)

export const auth = betterAuth({
  database: prismaAdapter(prisma, {
    provider: 'postgresql',
  }),
  baseURL: process.env.SERVER_URL || 'http://localhost:2020',
  socialProviders: {
    google: {
      clientId: process.env.GOOGLE_CLIENT_ID || '',
      clientSecret: process.env.GOOGLE_CLIENT_SECRET || '',
    },
  },
  plugins: [
    anonymous({
      onLinkAccount: async ({ anonymousUser, newUser }) => {
        // This is not called
        console.info('=== onLinkAccount callback triggered ===');
      },
    }),
    expo(),
    bearer(),
  ],
  trustedOrigins: ['http://localhost:8081', 'http://localhost:8082'],
});

export const authClient = createAuthClient({
  baseURL: `${SERVER_URL}`,
  basePath: '/api/auth',
  schema: 'MyApp',
  plugins: [
    expoClient({
      scheme: 'MyApp',
      storagePrefix: 'MyApp',
      storage: SecureStore,
    }),
    anonymousClient(),
  ],
});