JabRef version 4.3.1 on macOS 10.14.5

Apple's generic app icon is displayed instead of JabRef's icon in macOS Launchpad:

The icon is displayed normally in the dock – depending on the required resolution.

I had to recreate the app.icns file because it is partially corrupted. Could the updated file be added to the pre-build dmg-files?
app.icns.zip