custom transformer does not run when cache exists

What happens and why it is wrong

customTransformer does not works then rpt2_cache folder exists

Environment

Windows10 1903 ,WSL Terminal ( Ubuntu )

Versions

• typescript:3.4.3
• rollup:1.15.6
• rollup-plugin-typescript2:0.21.1

rollup.config.js

  const inputOptions = {
        input: './index.ts',
        external: [

        ],
        plugins: [
            nodeResolve(),
            typescript({
                transformers,
                tsconfigDefaults,
                tsconfig: "tsconfig.json",
                tsconfigOverride: {
                    compilerOptions: {
                        module: 'esnext',
                        declarationDir: "../../../dist/" + packageName + "/dts-temp/"
                    }
                },
                useTsconfigDeclarationDir: true
            }),

        ]
    };
    const outputOptions = {
        file: path.join("../../../dist/", packageName, packageName + ".js"),
        format: "es",

    };

    // create a bundle
    const originCwdDir = process.cwd();
    process.chdir(path.resolve(__dirname, '../packages/', packageName, 'src'))
    const bundle = await rollup.rollup(inputOptions);

tsconfig.json

package.json

plugin output with verbosity 3

[ezolenko]

And yeah workaround is to do clean builds

[ezolenko]

Doesn’t work how? Could you make a small test repo with reproduction?