Timepicker change in dashboards after DST

Grafana Configuration
1

Hi there,
I encounter strange behavior with some of my dashboards.

I display some day to day aggregated datas, so my timepicker is

   "time": {
    "from": "now/M",
    "to": "now-1d"
  }

After last DST on sunday night, when I open a dashboard, timepicker on my dashboards is now

 "time": {
    "from": "now/M",
    "to": "now-1d/d-23h"
  }

It causes problem as with this new value, it doesn’t display values from yesterday.
I’ve read many topics about how data is stored in database (UCT/GMV), but I don’t think this is the same problem, as in this case this is timepicker wuich has changed.

I use postgres database as backend, and when I look into data in dashboard table, I see the 23h : ...,"time":{"from":"now/M","to":"now-1d/d-23h"},"timepicker":{"nowDelay":"1d","refresh_intervals":[""],"time_options":["24h","2d","7d","30d"]},"timezone":"browser"

I guess this field didn’t update itself, but found nothing in postgres logs.
And I don’t understand why this value changed, as there is no reason to change it even on a daylight saving time event.
Obviously I’m missing something.

All ideas are welcome!