If we use customdata search currently, using dict sytax, this can result in urlencoding errors (I believe). We should debug this.

account = application.accounts.search({'customData': 'favoriteColor=true'})

The issue here (I believe) is that this generates a query string that looks like:

/v1/application/xxx/accounts?q=customData.favoriteColor=true

Which is an invalid URL.

I think the solution here is to debug the urlencoding functionality when this happens.