The default property names that the plugin creates cannot be placed into a JSON structure. For example, these two values cannot be put into a JSON object commit.id

commit.id:2eed44f166489b2f03169a2e2d7f910430ecf7a9
commit.id.abbrev:2eed44f

Instead, the first value should be named as a field in the "commit.id" object. Foe example:

commit.id.full:2eed44f166489b2f03169a2e2d7f910430ecf7a9
commit.id.abbrev:2eed44f