Circular build docgeni & throw error "LibrariesBuilder is emitting"

[why520crazy]

Describe the bug

circular build docgeni & throw error "LibrariesBuilder is emitting" when apiMode set 'compatible', first run npm i and docgeni serve.

Start building...Error: LibrariesBuilder is emitting
    at LibrariesBuilder.onEmit (/Users/haifeng/IT/10_YC/Worktile/ngx-tethys/node_modules/@docgeni/core/lib/builders/libraries-builder.js:69:19)
    at LibrariesBuilder.emit (/Users/haifeng/IT/10_YC/Worktile/ngx-tethys/node_modules/@docgeni/core/lib/builders/emitter.js:10:20)
    at DocgeniCompilationImpl.run (/Users/haifeng/IT/10_YC/Worktile/ngx-tethys/node_modules/@docgeni/core/lib/compilation.js:40:85)
    at processTicksAndRejections (internal/process/task_queues.js:95:5)

To Reproduce
Steps to reproduce the behavior:

1. delete node_modules
2. exec npm i
3. exec docgeni serve

Screenshots

Desktop (please complete the following information):

• Browser: chrome
• Version 1.2.0-next.13

[why520crazy]

Angular CLI ng serve first build third party library to Ivy, it trigger @docgeni/ngdoc watchers, and rebuild docgeni many times, it is not circular build.