I was having no luck with GitHub:/repo references (see other thread on this), eg:

spec
   baseline: 'WillowBootstrap'
      with: [ spec
         repository: 'github://ba-st/Willow-Bootstrap:v8/source';
         loads: #('Deployment') ];
   import: 'WillowBootstrap'.

So I tried using https equivalents like this:

spec
   baseline: 'WillowBootstrap'
      with: [ spec
         repository: 'https://github.com/ba-st/Willow-Bootstrap/tree/v8.0.2/source';
         loads: #('Deployment') ];
   import: 'WillowBootstrap'.

But then I wasn���t sure if the newer version of the repository was what I was supposed to use and so I altered my spec to use /v8 (not v8.0.2)

spec
   baseline: 'WillowBootstrap'
      with: [ spec
         repository: 'https://github.com/ba-st/Willow-Bootstrap/tree/v8/source';
         loads: #('Deployment') ];
   import: 'WillowBootstrap'.

However when I was looking at the log files of errors, I noticed that when I downgraded my spec to v8 and reran my CI on a fresh image the error message still referenced v8.0.2 . As this was a run on my CI (which is preserving the pharo-cache directory between runs) this looked a lot to me like Iceberg/Metacello is not taking into account version numbers or repo urls when loading things from the file cache? When I blew away the pharo-cache and reran it - it then correctly showed me errors referencing v8 again.

Is this a known problem?

Tim