nuget package push returns 400 if already exists - should be 409

[germgerm]

Description

as per subject , nuget push of existing package should return 409 Conflict - but is returning 400 Bad request

Gitea Version

1.17.0

Can you reproduce the bug on the Gitea demo site?

No

Log Gist

No response

Screenshots

No response

Git Version

2.7.4

Operating System

ubuntu 16.04

How are you running Gitea?

downloaded binary

Database

MySQL

[wxiaoguang]

Wait for backport

---

Update: already done by #20677