We want to be able to answer these questions going forward,
1. Are 'non-conflicting' edits causing the total number of chunks to be so large that is it easier to abandon?
* Track total number of chunks and correlation to success/abandonment
* #patch-for-review {T249605}
* What percentage of chunks have direct conflicts/overlapping edits in the same paragraph?
* Overlapping chunk count will be logged beginning with #mw1.35.0-wmf.27
1. Do users understand that they can edit?
* Track if editing before submission, track 'edit other' and 'edit yours' separately
* Same underlying metrics as above
1. What is causing abandonment?
* When is it happening? How long are people spending on the page / how complete is the form?
* Can be calculated from existing metrics and the above.
Ensure that we have metrics to produce this data, and build the postprocessing ahead of when we'll need it.