README instructs users to do strange things to their repositories.

[emctague]

README instructs users to do strange things to their repositories.

[fraciril]

Another tag name that worked for me is tag_name: ${{ github.run_number }}, which I found friendlier than the sha:

run_number: stringA unique number for each run of a particular workflow in a repository. This number begins at 1 for the workflow's first run, and increments with each new run. This number does not change if you re-run the workflow run.

[Oskar619]

Came here just for this, I messed up my master branch in my repository because I was trying to test the example.
At least some comments stating why you shouldn't do it with a non-tagged branch could have helped me avoid this situation.

[ash0x0]

There was probably an implicit assumption by whoever wrote the README that people would be using this conditionally with version tags so I think there were assuming the step/job would have if: startsWith(github.ref, 'refs/tags/v') which is probably what anyone using some release action like this should have.

[emctague]

@ash0x0 for best practice use I would agree but in some simple projects (such as the one that prompted me to make this issue) it can be useful to just build any commit and create an artifact for it.