#5372 – Toggling between Flex and Sequence modes causes loosing layout info

[mnmsvlw]

How the feature works? / How did you fix the issue?

This PR fixes the issue with data loss in the layout when switching from flex to sequence mode. The problem was that the initialize method of the SequenceMode class called the reArrangeChains function with the isSnakeMode = true parameter, which triggered chain rearrangement

Update: isSnakeMode is disabled only when switching modes. The layout will be still recalculated after sequence updates. To manage this, a new argument needReArrangeChains has been added to the initialize method of the SequenceMode

Check list

• unit-tests written
• e2e-tests written
• documentation updated
• PR name follows the pattern #1234 – issue name
• branch name doesn't contain '#'
• PR is linked with the issue
• base branch (master or release/xx) is correct
• task status changed to "Code review"
• reviewers are notified about the pull request