date range picker "Last year" initially goes to wrong end date

[sandikbarr]

This bug was throwing an Expression changed after checked error in development mode. In production, I can reproduce this bug consistently only when I've first loaded the app, but not after clicking and applying a different date range.

When the "Last year - Jan 1 - Dec 31" option in the date range picker is clicked, initially it will show an end date of 4 weeks back from the current date instead of Dec 31. Click it again and you get the correct date, Dec 31. Once I apply a different date range, I can't seem to reproduce the bug again unless I reload the app. This only seems to happen with the Last year option. It's very strange and seems to be a bug in the underlying date picker library pikaday, which is unfortunately no longer maintained. 😢