Huge delta when just bumping version number

I'm new to Electron and this installer.

When creating releases of the same codebase (just updating `version` in `package.json`) I get huge deltas. I don't think thats normal..

Windows 32bit full nupkg: 40 MB
Windows 32bit delta: 24 MB

Windows 64bit full nupkg: 49 MB
Windows 64bit delta: 31 MB

Looking inside the delta .nupkg I see there are many `.diff` and `.shasum` files, however the main `SmartFarmer.exe` file has a `.bsdiff` and is **also** included as a whole (80 MB!).


The big .exe file obviously is the reason why the delta gets so big, but why is it included at all? What mistake could I have done?

I've seen https://github.com/electron-userland/electron-builder/issues/464 and https://github.com/electron-userland/electron-builder/issues/505 but I doubt they are related.

Running `electron-winstaller` with `DEBUG=electron-windows-installer:main` doesn't show anything helpful IMHO - at least there are no errors / warnings. Dunno if there is some more debug information available somewhere (like a log file).

Using `electron-winstaller` 2.6.3