Spurious, unreadable ZIPs created when working with unpacked resources that contain nested folders

[davidmreed]

ForceCLI version: 0.25.0 (latest released)
Environment: Windows 7/Git Bash

When working with unpacked Static Resources, issuing force push -t StaticResource results in ForceCLI creating spurious ZIPs. For example, the following directory tree:

src/
    staticresources/
         Leaflet/
             ... various content files ...
             images/
                 ... various content files ...

results in the creation of three resource files:

• src/staticresources.resource
• src/staticresources/Leaflet.resource
• src/staticresources/Leaflet/images.resources

All three resource files are invalid ZIPs according to Windows Explorer and 7zip. (I do not have access to a Linux machine at work to validate these files). References within the static resource on Salesforce return 404 errors.