Reproduce of error with postgres + EF Core + multiple entities with JsonDocument properties.
First run seeds data and displays it, everything is OK. Data looks like this:
Skoda:
{"HP":94}
John Doe:
{"Title":"Senior"}
Second run and forward, the output look like this:
Skoda:
"Title": "
John Doe:
{"Title": "Senior"}
The data in the database are correct, it look like this:
SELECT * FROM public."Cars"
1 "Skoda" "{"HP": 94}"
SELECT * FROM public."People"
1 "John Doe" "{"Title": "Senior"}"