Why sent file uploads to the backend for evaluation?

[kitzberger]

Since only fields of the types

• input
• textarea
• select
• radio
• check

can be selected as start_field why sent all inputs to the backend for evaluation purposes? In #59 we've created a way to exclude certain types from being submitted to the condition.json route. But now I'm thinking about whether it might be even better to exclude file fields per default when they can't be used in conditions anyway. @einpraegsam, what's your opinion on this?