Productivity Analytics: MR table showing zeros in "Time to merge" column

[FE] - We get 0's in the table for certain MRs that don't have 0 time (I think that's because of the wrong definition of time to merge).

I think this one is easy. It shows 0 because the data and labels are mixed up. Time to merge is basically the time in days, but instead it seems like we are feeding it the data from time from last commit to merge. Equally, on the dropdown we should have only the 3 components of time to merge, i.e. time from last commit to merge, time from first commit until first comment and time from first comment to last commit. The days to merge is not something that is defined anywhere. Do you see what I mean?

[FE] What is the difference between time to merge and days to merge and how can they be different (screenshot 3 above). I think time to merge is actually time from last commit to merge. It should be on the dropdown rather than days to merge. And days to merge should be the column which is always present in the table. ~P1