Hi, so I use [simplediskimage](https://pypi.org/project/simplediskimage/), a python wrapper for several tools (including `mtools`) to build a simple disk image.
When I run my script inside the official 3.11-bookworm container from hub.docker.io, `mcopy -i <redacted tmp file> -bQ <source file> <target file>` fails with ``` Internal error, size too big Streamcache allocation problem:: 3 ``` This does not happen with the 3.11-bullseye container with `mtools` 4.0.26. According to [the internet](https://github.com/PartialVolume/shredos.x86_64/issues/120) this is fixed as well in 4.0.42. As I can't change the way `simplediskimage` is calling `mcopy` and remove the `-b` option, I would like to have the fix (whatever it is) back ported. BR Silvio
