massiccio

I have tried the workaround described [here](https://github.com/tortoise/aerich/issues/295), i.e., downgrading to version 0.6.3. That fixed the init-db, however the upgrade still fails. ``` Installing collected packages: aerich Attempting uninstall: aerich Found...

I tried that, but to no avail. Just in case you wish to reproduce the problem, here is a simple model. ``` class Alert(models.Model): id = fields.IntField(pk=True) opsgenie_id = fields.CharField(max_length=50,...