Initial inclusion of partclone 0.3.11, fixes T4750.
Cloned a USB stick with sudo partclone.vfat -c -s /dev/sdh1 -o sdh1.img
Checked the image with sudo partclone.chkimg -s sdh1.img
Restored the image to another stick with sudo partclone.restore -s sdh1.img -o /dev/sdg1
Sure. No problem, it was my mistake anyway.
But it should be noted, that they didn't upload any sources on their homepage since 2016, but on their github https://github.com/Thomas-Tsai/partclone which they consider stable as well.
"master branch is NOT STABLE, Please check 'release' branch"