Spaces in stack name causes mislabelling

[jardon]

Spaces in the name of the stack (ie. "ubuntu jammy") cause a mislabelling of the resulting container during creation. This takes the second part of the name (after the first space) and dumps it into the distrobox command which then forwards it to the container engine. The result is that the container engine (in this case podman) interprets the part after the space as the image name.

Example:
--label=stack=ubuntu jammy is read as --label=key=value <image-name> which then checks for an image in docker.io/library/jammy:latest

Since there is no input validation, spaces are allowed but not accounted for. The problematic code is found here as it wrecklessly throws the stack name in as a label.