Spaces in Path result in Exit status 65

[fabb]

Somewhere in the plugin the path gets cut off at the first space.
Up to some point it gets treated correctly, as the following is printed out correctly:

Exporting all variants of /path/containing/s p a c e s.xcarchive

But then it fails:

error: archive not found at path '/path/containing/s'
** EXPORT FAILED **
Exit status: 65