duplicate of #1467.
From my exp, the posted workaround works (git fetch manually)

#417 #415

Description of the fetch-tags says: Whether to fetch tags, even if fetch-depth > 0, but it seems that action in version 4.1.1 do not pull the tags, only the PR branch.

I set these action options:

fetch-depth: 1
fetch-tags: true
ref: ${{ github.head_ref }}

Same in here.

I'm seeing this as well.

I turned on action debugging and can see the git commands being run, specifically the fetch is this

git -c protocol.version=2 fetch --prune --no-recurse-submodules --depth=1 origin +c9787a9d432669beb6e566e710fe8afd6ad8f9cd:refs/remotes/origin/dev-17340

In order to do the right thing we would need the --tags flag in there

@togakangaroo do you have a test repository at hand? Can you point it to my PR above and check if that fix the issue for you?

Your tip made me find the related code.