Error when flashing Chameleon-RevG.hex

[hugomon]

I have downloaded the latest hex and eep files, dated February 2021. The device is the chameleon tiny revG.
I try the programming from windows 10 x64:

>**dfu-programmer.exe atxmega128a4u erase** Checking memory from 0x0 to 0x1DFFF... Not blank at 0x1. Erasing flash... Success Checking memory from 0x0 to 0x1DFFF... Empty.

>**dfu-programmer.exe atxmega128a4u flash-eeprom Chameleon-RevG.eep --force** 0% 100% Programming 0x80 bytes... [>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>] Success 0% 100% Reading 0x800 bytes... [>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>] Success Validating... Success 0x80 bytes written into 0x800 bytes memory (6.25%).

Here comes the error:
>**dfu-programmer.exe atxmega128a4u flash Chameleon-RevG.hex** Bootloader and code overlap. Use --suppress-bootloader-mem to ignore

If I use --suppress-bootloader-mem it's flashed.

>**dfu-programmer.exe atxmega128a4u flash Chameleon-RevG.hex --suppress-bootloader-mem** Checking memory from 0x0 to 0x1DFFF... Empty. 0% 100% Programming 0x1E000 bytes... [>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>] Success 0% 100% Reading 0x1E000 bytes... [>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>] Success Validating... Success 0x1E000 bytes written into 0x1E000 bytes memory (100.00%).

Is it correct to do it this way? If not, what is the correct way to do it?