Is there a way to update based on a template that has no git tags only commits?

[pycaw]

From https://copier.readthedocs.io/en/latest/updating/

The template is versioned with Git (with tags).

It's as if --vcs-ref would do this but what I get is,

$ copier update --vcs-ref=HEAD
No git tags found in template; using HEAD as ref
Cannot update because cannot obtain old template references from `.copier-answers.yml`

Context:

$ cat .copier-answers.yml 
# Changes here will be overwritten by Copier
_src_path: ../templates/rrere-misc-rs

and,

$ git -C ../templates/rrere-misc-rs/ log --oneline
111e085 (HEAD -> master) v2
a98bdaa v0