time is wrong on push webhook

[Veitor]

{
  "secret": "asdf",
  "ref": "refs/heads/master",
  "before": "d14a68d342193ad03c5083be6836d4dea45f49ca",
  "after": "d14a68d342193ad03c5083be6836d4dea45f49ca",
  "compare_url": "",
  "commits": [
    {
      "id": "d14a68d342193ad03c5083be6836d4dea45f49ca",
      "message": "Foo bar\n",
      "url": "https://try.gogs.io/martinhpedersen/test/commit/d14a68d342193ad03c5083be6836d4dea45f49ca",
      "author": {
        "name": "Martin Hebnes Pedersen",
        "email": "martinhpedersen@foobar.no",
        "username": ""
      },
      "committer": {
        "name": "Martin Hebnes Pedersen",
        "email": "martinhpedersen@foobar.no",
        "username": ""
      },
      "timestamp": "0001-01-01T00:00:00Z"
    }
  ],
  "repository": {
    "id": 6131,
    "owner": {
      "id": 9409,
      "username": "martinhpedersen",
      "full_name": "",
      "email": "martinhpedersen@foobar.com",
      "avatar_url": "https://secure.gravatar.com/avatar/foobar"
    },
    "name": "test",
    "full_name": "martinhpedersen/test",
    "description": "",
    "private": true,
    "fork": false,
    "html_url": "https://try.gogs.io/martinhpedersen/test",
    "ssh_url": "git@try.gogs.io:martinhpedersen/test.git",
    "clone_url": "https://try.gogs.io/martinhpedersen/test.git",
    "website": "",
    "stars_count": 0,
    "forks_count": 0,
    "watchers_count": 1,
    "open_issues_count": 0,
    "default_branch": "master",
    "created_at": "2016-08-25T15:46:40-04:00",
    "updated_at": "2016-08-26T03:37:14-04:00"
  },
  "pusher": {
    "id": 9409,
    "username": "martinhpedersen",
    "full_name": "",
    "email": "martinhpedersen@foobar.com",
    "avatar_url": "https://secure.gravatar.com/avatar/foobar"
  },
  "sender": {
    "id": 9409,
    "username": "martinhpedersen",
    "full_name": "",
    "email": "martinhpedersen@foobar.com",
    "avatar_url": "https://secure.gravatar.com/avatar/foobar"
  }
}

the payload show commit_time is "0001-01-01T00:00:00Z"

[unknwon]

Patch has pushed to fix this issue, please test on develop branch or https://try.gogs.io.