Strange sum in database

Hi guys,
I am again a bit struggling with database entries related to energy consumptions. Although state values seems to be ok (in statistics_short_term table, measuring kwh consumtion), sum column contains in rare cases not just variance in state column but addition of the whole state value to previous sum (i.e. doubleing the consumption), then it goes again fine and after some random time the same.
I assume that sum is generated automatically by HA, i.e. is it a bug? Shall I open it on github?

Below is an example of the output… I am running version 2022.2.9

id metadata_id created state sum
805072 29 2022-03-09 02:40:10.212482 13472.49 14062.169999999998
805158 29 2022-03-09 02:45:10.240479 13472.57 14062.249999999998
805244 29 2022-03-09 02:50:10.234776 13472.64 14062.319999999998
805330 29 2022-03-09 02:55:10.221820 13472.73 14062.409999999998
805416 29 2022-03-09 03:00:10.267149 13472.81 14062.489999999998
805502 29 2022-03-09 03:05:10.244628 13472.9 14062.579999999998
805588 29 2022-03-09 03:10:10.245962 13472.98 14062.659999999998
805674 29 2022-03-09 03:15:10.241821 13473.06 14062.739999999998
805760 29 2022-03-09 03:20:10.294412 13473.14 27535.92
805846 29 2022-03-09 03:25:10.231938 13473.22 27536.0
805932 29 2022-03-09 03:30:10.222656 13473.31 27536.09