Statistic page shows repeated week "12/31/2018 - 1/7/2019"

[zhhyu]

The statistic page in gallery shows repeated week "12/31/2018 - 1/7/2019", which is wrong. The graph of downloaded packages per week is not correct too.

[agr]

This happens, because last day of the 2018 was Monday and it was 53rd week of the year. The sproc that produces the data for this report works like this:

1. It figures out which day was 42 days ago;
2. Checks which week was containing that day (so for 1/17/2019 it finds out that 42 days ago it was 49th week of 2018).
3. It takes 6 weeks of data starting from that week (so, again, for 1/17/2019, it will grab data for weeks 49, 50, 51, 52, 53 and 1 (of 2019), regardless of the fact that 53 of 2018 and 1 of 2019 is the same week) and returns it.