Special character encoding

When trying to create a task which contains special characters in its title, the backend crashes. I speculate that we this issue is also present in different fields and endpoints. Further, I guess this would allow for some common attacks vectors to be exploited, since for the example in the picture the final error does not sound good:

raise exc.FlushError(
sqlalchemy.orm.exc.FlushError: Can't flush None value found in collection Task.children