event file overrides github.ref but not github.ref_name

[Dr-Electron]

Bug report info

act version:            0.2.71
GOOS:                   darwin
GOARCH:                 amd64
NumCPU:                 16
Docker host:            DOCKER_HOST environment variable is not set
Sockets found:
	/var/run/docker.sock
Config files:           
	/Users/dr-electron/.actrc:
		-P ubuntu-latest=catthehacker/ubuntu:act-latest
		-P ubuntu-22.04=catthehacker/ubuntu:act-22.04
		-P ubuntu-20.04=catthehacker/ubuntu:act-20.04
		-P ubuntu-18.04=catthehacker/ubuntu:act-18.04
Build info:
	Go version:            go1.23.4
	Module path:           command-line-arguments
	Main version:          
	Main path:             
	Main checksum:         
	Build settings:
		-buildmode:           exe
		-compiler:            gc
		-ldflags:             -X main.version=0.2.71
		CGO_ENABLED:          1
		CGO_CFLAGS:           
		CGO_CPPFLAGS:         
		CGO_CXXFLAGS:         
		CGO_LDFLAGS:          
		GOARCH:               amd64
		GOOS:                 darwin
		GOAMD64:              v1
Docker Engine:
	Engine version:        27.4.1
	Engine runtime:        runc
	Cgroup version:        2
	Cgroup driver:         cgroupfs
	Storage driver:        overlay2
	Registry URI:          https://index.docker.io/v1/
	OS:                    OrbStack
	OS type:               linux
	OS version:            
	OS arch:               x86_64
	OS kernel:             6.12.10-orbstack-00297-gf8f6e015b993
	OS CPU:                16
	OS memory:             16049 MB
	Security options:
		name=seccomp,profile=builtin
		name=cgroupns

Command used with act

act -W ./.github/workflows/upload-docs-to-aws.yml -P ubuntu-latest=catthehacker/ubuntu:full-20.04 -e event.json

Describe issue

I have an event.json file with the following content:

{
    "ref": "develop",
    "ref_name": "develop"
}

If I look at the GitHub context, github.ref is set to develop, but github.ref_name is not. Seems inconsistent to me.

Link to GitHub repository

No response

Workflow content

on:
  push:
    branches:
      - develop

jobs:
  build-and-upload-docs:
    runs-on: ubuntu-latest

    steps:
      - name: Dump GitHub context
        env:
          GITHUB_CONTEXT: ${{ toJson(github) }}
        run: echo "$GITHUB_CONTEXT"

Relevant log output

| {
|   "event": {
|     "ref": "develop",
|     "ref_name": "develop"
|   },
|   "event_path": "/var/run/act/workflow/event.json",
|   "workflow": "Upload Docs to S3",
|   "run_attempt": "1",
|   "run_id": "1",
|   "run_number": "1",
|   "actor": "nektos/act",
|   "repository": "",
|   "event_name": "push",
|   "sha": "ca9b545cb54f9f2b9905cab56102936d81f79fe6",
|   "ref": "develop",
|   "ref_name": "",
|   "ref_type": "",
|   "head_ref": "",
|   "base_ref": "",
|   "token": "",
|   "workspace": "",
|   "action": "0",
|   "action_path": "",
|   "action_ref": "",
|   "action_repository": "",
|   "job": "build-and-upload-docs",
|   "job_name": "",
|   "repository_owner": "",
|   "retention_days": "0",
|   "runner_perflog": "/dev/null",
|   "runner_tracking_id": "",
|   "server_url": "https://github.com",
|   "api_url": "https://api.github.com",
|   "graphql_url": "https://api.github.com/graphql"
| }

Additional information

No response