Possible Security Issue

Configuration
Keka version: Version 1.1.30 (3477)
macOS version: macOS 10.14.6 (18G6020)

Describe the bug
Create a zip with a password and 256 encryption. I upload these to Google Drive (web interface) and without password I can see the content of one of the zips, in Google Drive. I repeated with that folder, same result. This is quite a security issue if I don't miss a step.

To Reproduce
Steps to reproduce the behavior:

1. set Keka with ZIP 256bits encryption
2. Drop several folders to zip them individually, then upload these to Google Drive.
3. Then I noticed I didn't setup encryption on first one, so deleted it from Google Drive, re zipped it localy with encryption and uploaded again. I could see content in Google Drive!
4. I then tried again changing the name of the folder before zipping it, thinking to avoid potential issues with that (upload delete reupload same name file). But same again, content accessible.Wow