CHDMAN: creating delta chd using parent chd with large size and small hunk will report error

[crashGG]

MAME version

0.271 , 0.272

System information

Win10 22h2 , AMD zen4 7840HS

Incorrect behaviour

In some cases,creating delta chd using parent chd with large size and small hunk will report error:

CHD error occurred: Hunk out of range
Error during compression: Hunk out of range
Fatal error occurred: 1

But when I changed chdman back to 0.270, the compression went smoothly.

Expected behaviour

compression went smoothly like 0.270

Steps to reproduce

1, specify the hunk size as 2048 to make chd file.
for example:
chdman createdvd -c zstd,flac,huff,lzma -hs 2048 -i "Soulcalibur III (Japan) (En,Ja) (v2.00).chd" -o "ori.chd"
2,Modify some data on the original iso (e.g. simply modify a few bytes). Then create a delta for the parent using the previous chd.
for example:
chdman createdvd -i "modded.iso" -op "ori.chd" -o "new.chd"

Additional details

I tested several larger iso that exhibited the problem:
Soulcalibur III (Japan) (En,Ja) (v2.00).iso
Berserk - Millennium Falcon-hen - Seima Senki no Shou (Japan).iso

[crashGG]

In addition, the earliest problematic commit that can be traced back is this
4358422