Account not marked as legacy

[lukasjuhrich]

I've stumbled across this piece of code, which most likely is a bug:

pycroft/web/blueprints/finance/__init__.py

Lines 788 to 795 in 865ebcf

	account = session.get(Account, account_id)
	if not account:
	abort(404)
	account.legacy = not account.legacy
	session.commit()

it's missing a session.add(account).

• Add a test witnessing this bug
• make it pass :)

[ibot3]

Since when is it required to call session.add on existing objects?