sequence subtraction bug

[drmax24]

Bug Report

Information	Description
Version	4.9.0
PHP version	7.3

Summary

after substraction of sequences i have the following period:

object(League\Period\Sequence)#5214 (1) {
  ["intervals":"League\Period\Sequence":private]=>
  array(73) {
    [0]=>
    object(League\Period\Period)#5216 (3) {
      ["startDate":"League\Period\Period":private]=>
      object(League\Period\Datepoint)#5162 (3) {
        ["date"]=>
        string(26) "2020-01-21 00:00:00.000000"
        ["timezone_type"]=>
        int(3)
        ["timezone"]=>
        string(13) "Europe/Moscow"
      }
      ["endDate":"League\Period\Period":private]=>
      object(League\Period\Datepoint)#4092 (3) {
        ["date"]=>
        string(26) "2020-01-20 21:30:00.000000"
        ["timezone_type"]=>
        int(1)
        ["timezone"]=>
        string(6) "+00:00"
      }
      ["boundaryType":"League\Period\Period":private]=>
      string(2) "[]"
    }

It has the end date which is actually earlier than the start date.
Subtrahend sequence consists of overnight periods. And initial sequence is a single long period.

[drmax24]

Looks like i overlooked timezones in this report. Close plz