zbar cannot scan this rather obvious QR code

[vi]

Zxing barcode scanner on smartphone scans this one well:

I tried manually improving the code in raster editor to make it look more like the canonical variant (that zbar handles well):

, but zbarimg still fails to find anything.

Version 0.23.90-1 from Debian.

[vi]

Downscaling the image makes zbar correctly decode the sample.

[maslick]

My OSS project named Koder which is based on zbar 0.23.90 (compiled into WebAssembly) is able to decode this QR. Check out the demo here: https://qr.maslick.tech