bugfix create and edit requests did not work with assertFieldCount

[martonbaranyai]

as create and edit pages read from “fields” not from “resource.fields"

these are the current correct request type -- json route pairs: index — resources.0.fields detail — resource.fields create, edit — fields

[chrillep]

@dillingham ping

[ao-jhelmich]

Please merge this @dillingham

[dillingham]

@martonbaranyai do you want to maintain this? I'll transfer to you