History page, pick "This week", get 30th Oct to 5th Nov (Today is 1st Dec)

I’m on the latest, using a virtual env install on Debian Buster. Somethign is wrong with the date picker today (1st Dec) when I pick “This week”. No clue how to fix this but if some kind person succeed could they also use the user’s locale idea of the start day of the week (it’s Monday for EN_GB)?