komga: [Bug] Sub Folders Not Being Created As Series

Komga environment

• OS: Ubuntu 18.04.3 LTS
• Komga version: komga-0.14.1.jar
• Java version:
  • openjdk 11.0.6 2020-01-14
  • OpenJDK Runtime Environment (build 11.0.6+10-post-Ubuntu-1ubuntu118.04.1)
  • OpenJDK 64-Bit Server VM (build 11.0.6+10-post-Ubuntu-1ubuntu118.04.1, mixed mode, sharing)
• Browser (with version): Firefox 72.0.2 (64-bit)

Describe the bug

When I add a new library, it is only importing the files in the selected root folder and not created series based on the sub folders.

Steps to reproduce

1. Add a new library with sub folders.

Expected behavior

The sub folders are added as series to the library.

Actual behavior

Only the files not in sub folders are added as one series.

Additional context

Example:

Comics/
├── Private Eye/
│   ├── Volume 1.cbz
│   └── Volume 2.cbz
└── One Shot.cbz

In this case, only One Shot is being created in a series called Comics, but the Private Eye series is not being created.

Log file

https://gist.github.com/spslater/a3962c313998872ccaf0e29e09db278d