Bug display correct farmer products

[lucamne]

Describe the bug
Upon registering as a farmer you are shown the inventory of the farmer with user_id = 0 until the page is reloaded

To Reproduce
Steps to reproduce the behavior:

1. Go to sign up
2. Create a new farmer
3. You will be displayed with products of user 0

Expected behavior
There should be no products displayed

Priority
Medium

Timeline
1 week

Status
Being worked on

Additional context
We know the issue is the database is being queried before the new user has been saved to the database. We just need to implement code that will prevent this.