See related PR. The 'alpha' id extension was previously agreed, but not changed in all instances in the document.
Figure 5: implies that the patch number is increased on rejecting the archetype
The bullet point below: "An artefact may be rejected, in which case its minor version is incremented (following the [semver.org] rules), and the artefact lifecycle state is set to rejected." - this should read 'patch' not 'minor'.