When you change the default app, don't erase the Publisher and Developer

[The T]

As the title says. It seems each “Additional App” has it’s own Developer and Publisher fields, which are blank by default. If you change the default app, it replaces the current ones.

There are any number of ways of fixing this; from not doing that, to having the Developer and Publisher put into all app’s fields when it’s scraped. (The latter method is less good since you may combine things later and then it wouldn’t carry over).