Leaving a field blank omits it from the config

[simonw]

Resulted in this in the database

Also, need to figure out that thing where we store as {"key": ["list of one value"]} - can we be neater than that while still supporting multiple items?

[simonw]

Also, need to figure out that thing where we store as {"key": ["list of one value"]} - can we be neater than that while still supporting multiple items?

I fixed that in:

• Fix issue where config has to be treated as a list of values #18

[simonw]

Weirdly at the moment it looks like setting the field to blank uses the default value for the field instead:

• Field unexpectedly assumes default value when formdata is empty pallets-eco/wtforms#157

[simonw]

This is working OK now.