Creating repo with one empty commit causes repository page to fail

[jotoho]

• Gitea version (or commit ref): 1.15.0+rc2 (deployed via docker)
• Git version: 2.30.2 in server container; 2.32.0 on client PC
• Operating system:
  • Docker container created from slightly outdated official image downloaded from Docker Hub (container is a few days old)
  • Host is Raspberry Pi 4 with 4GB RAM running the official 64-bit Raspberry Pi OS
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io: (account activation link has yet to be delivered to my mailbox. Will test once I can create repos there.)
  • Yes (provide example URL)
  • No
• Log gist: https://gist.github.com/jotoho/25b55e1c1c0a66202cb282822d79921e

Description

Creating an empty repository with the following commands:

git init
git commit --allow-empty -m "Initial commit"

and then pushing it to a new repository on gitea causes attempts to open the repo in the webinterface to fail with an "Internal Server Error" message. Creating and pushing a second commit with actual files causes the Webinterface to behave normally again.

For transparency: The gitea instance is running behind a HTTPS reverse proxy (Caddy) but I cannot imagine that having anything to do with this issue.

Screenshots