Renaming vendor breaks composer install

**Steps to reproduce:**
1. Use path mapping `"web/app/plugins/{$name}/": ["type:wordpress-plugin"]`
1. Change package name e.g. from `a/my-package` to `b/my-package`
1. `composer remove a/my-package && composer require b/my-package`
1. Run `composer install`

**What happens:**
Composer uninstalls `a/my-package`, then installs `b/my-package`, but as a last step, it removes `my-package` directory (therefore removes the newly installed one)`.

**Expected behaviour:**
Old package will be removed, and new plugin will be installed.