`Network error SyntaxError:` when creating issue with assignees from issue template

[bartvdbraak]

Description

One of our users has the following issue template:

---

name: Bug Report
about: Help improve CloudRig by submitting a bug report.
ref: "master"
title: ""
assignees: ["Mets"]
labels:

- bug

---

**System Information**
Operating system:

Blender Version: 
CloudRig Version: 

**Exact steps to reproduce the error**
Based on the human metarig or a minimal .blend file.

CC @Mets

The assignees: ["Mets"] gives error such as

When a user tries to create the bug report. It seems to be related to the user not having the permissions to add such an assignee.

When I try to create the report on my Admin account it seems to work fine.

Gitea Version

1.23.1 built with GNU Make 4.4.1, go1.23.5 : bindata, timetzdata, sqlite, sqlite_unlock_notify

Can you reproduce the bug on the Gitea demo site?

Yes

Log Gist

No response

Screenshots

Trying to create issue as normal user

Created issue successfully as admin user

Git Version

2.47.2

Operating System

Ubuntu 24.04

How are you running Gitea?

Docker Compose with source of truth at https://github.com/blender/gitea

Database

PostgreSQL

[silverwind]

Can you show the relevant URL and JSON response from the browser's "Network" tab? Is response text just this "Not found." string?

[bartvdbraak]

I recreated the issue here:

https://projects.blender.org/bartvdbraak/issue-template-test/issues/new?template=.gitea%2fissue_template%2fbug.md

When I try to open a new issue with a non-admin account, it sends this request (I removed some CSRF token and cookie headers):

curl 'https://projects.blender.org/bartvdbraak/issue-template-test/issues/new' \
  -H 'accept: */*' \
  -H 'accept-language: en-US,en;q=0.9' \
  -H 'content-type: multipart/form-data; boundary=----WebKitFormBoundaryBFqVnzVCMkuWqrOb' \
  -H 'origin: https://projects.blender.org' \
  -H 'priority: u=1, i' \
  -H 'sec-ch-ua: "Chromium";v="131", "Not_A Brand";v="24"' \
  -H 'sec-ch-ua-mobile: ?0' \
  -H 'sec-ch-ua-platform: "Linux"' \
  -H 'sec-fetch-dest: empty' \
  -H 'sec-fetch-mode: cors' \
  -H 'sec-fetch-site: same-origin' \
  -H 'user-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36' \
  --data-raw $'------WebKitFormBoundaryBFqVnzVCMkuWqrOb\r\nContent-Disposition: form-data; name="_csrf"\r\n\r\n<redacted>\r\n------WebKitFormBoundaryBFqVnzVCMkuWqrOb\r\nContent-Disposition: form-data; name="title"\r\n\r\ntest\r\n------WebKitFormBoundaryBFqVnzVCMkuWqrOb\r\nContent-Disposition: form-data; name="content"\r\n\r\ntest\r\n------WebKitFormBoundaryBFqVnzVCMkuWqrOb\r\nContent-Disposition: form-data; name="ref"\r\n\r\nrefs/heads/master\r\n------WebKitFormBoundaryBFqVnzVCMkuWqrOb\r\nContent-Disposition: form-data; name="search"\r\n\r\n\r\n------WebKitFormBoundaryBFqVnzVCMkuWqrOb\r\nContent-Disposition: form-data; name="label_ids"\r\n\r\n1819\r\n------WebKitFormBoundaryBFqVnzVCMkuWqrOb\r\nContent-Disposition: form-data; name="milestone_id"\r\n\r\n0\r\n------WebKitFormBoundaryBFqVnzVCMkuWqrOb\r\nContent-Disposition: form-data; name="project_id"\r\n\r\n0\r\n------WebKitFormBoundaryBFqVnzVCMkuWqrOb\r\nContent-Disposition: form-data; name="assignee_ids"\r\n\r\n46779\r\n------WebKitFormBoundaryBFqVnzVCMkuWqrOb\r\nContent-Disposition: form-data; name="redirect_after_creation"\r\n\r\n\r\n------WebKitFormBoundaryBFqVnzVCMkuWqrOb--\r\n'

This is the reponse I get:

Not found.

[wxiaoguang]

-> #33569