Webhook bug: compare_url is incorrect for a new branch

[bill828]

• Gitea version (or commit ref): 1.9.3
• Git version: 2.16.2
• Operating system: CentOS 7.5
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
  • Not relevant
• Log gist:

Description

When I push new branch to the gitea server with more than one commits, a push event will be sent to the configured webhook.
However, the fields "before" and "compare_url" are incorrect.
Please see the attachment picture for the screenshot.

Reproduce steps:

1. Create a new branch with command line "git checkout -b testbranch"
2. Make some changes and commit.
3. Push to remote with command line "git push --set-upstream origin testbranch".

Screenshots

[lunny]

Which version did you use?

[bill828]

I was using Gitea 1.9.3.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. I am here to help clear issues left open even if solved or waiting for more insight. This issue will be closed if no further activity occurs during the next 2 weeks. If the issue is still valid just add a comment to keep it alive. Thank you for your contributions.