Describe the bug

Following error is returned when loggin in via Gitea:

{"error":"Error 1406: Data too long for column 'access_token' at row 1"}

Steps to reproduce

Steps to reproduce the behavior:

1. Attempt to login to WriteFreely via Gitea OAuth;
2. When redirected from Gitea back to WriteFreely above error is displayed.

Expected behavior

Should successfully login.

Application configuration

• Single mode or Multi-user mode? Multi-user
• Database? [mysql/sqlite] MySQL
• Open registration? [yes/no] No
• Federation enabled? [yes/no] Yes

Version or last commit: v0.13.1