Redwood UI - What is the purpose of the Edit button on top of sections in Create requisition page?

Summary: We would want to know the purpose of the edit - pencil kind of button on top of all the sections in Redwood - create requisition page.

Since we found the functionality very different when clicked on it. While entering data in the sections, without saving or continuing if we click on that button, it reverts all the changes made to the fields which is confusing.

Below is the screenshot:

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We would want to know the purpose of the edit - pencil kind of button on top of all the sections in Redwood - create requisition page.