This is regarding the new feature in https://bitbucket.org/blog/bitbucket-server-4-13-brings-browser-editing .
What are the constraints to ensure a file is editable a) in-browser b) with the API ?
a1) "This file is too large to edit" → it seems 20000 lines is one constraint
a2) "Lines have been truncated due to their lengths and can't be edited" → how many characters per line?
b) no idea for the API, are there similar limitations?
