full generator ids have same format as medium ids

The format of the full id is identical to the medium format, so it's not possible to tell them apart.
Too late to fix this as the code has already been released (0.9).
But it should be borne in mind for any future generator types.

The issue names no file, test, or entry point. First locate the generator ID formatting logic, then determine how future generator types should distinguish full and medium IDs; the issue provides no agreed implementation or completion test.

Written by the indexing model from the issue text.