Issues and PRs seem to be assigned to "Ghost" by default

[thehowl]

• Gitea version (or commit ref): c1a3a7a970db94fbdf267f283de62f1d01a0b994
• Git version: 2.12.2
• Operating system: Arch Linux
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes: https://try.gitea.io/smemato/aasdasd/issues/1
  • No
  • Not relevant

Screenshots