unpack - handling of relative paths problematic

[germanicianus]

When unpacking a uf2 of OpenRoberta, the files contained are not extracted to the target directory, but to the one above. The reason seems to be relative path specification like ../prjs/BRKprog_SAVE/. Sample uf2 file (zipped): NEPOprog.zip

In case you didn't know - your program is linked/used here:
https://jira.iais.fraunhofer.de/wiki/display/ORInfo/Set+Up+EV3+-+System+C4EV3#SetUpEV3SystemC4EV3-Linux
https://jira.iais.fraunhofer.de/wiki/display/ORInfo/Vorbereitung+EV3+-+System+C4EV3#VorbereitungEV3SystemC4EV3-Linux
In below file also containing https://github.com/c4ev3/ev3duder:
https://jira.iais.fraunhofer.de/wiki/download/attachments/90802329/upload-c4ev3.zip?version=1&modificationDate=1572874886350&api=v2