Bug#964915: Info received (Raspi 4 debian image update-initramfs)

[basti]

I do not understand:

Raspi4: Kernel 5.7.x has mmcblk1p1 and mmcblk1p2 while

Raspi3: Kernel 4.19.0-9 has mmcblk0p1 and mmcblk0p2

why this?
I think this is the reason of this bug