To undo changes since the last commit, use the Revert button.
Each branch has a list of previous commits and Uncommitted Changes. To show the changes since the last commit, click the arrow to the left of the three-line icon in the Uncommitted Changes section.
Note:
Reverting a change reverts all changes that have been made since that change as well. Make sure that you understand all the changes that will be reverted before reverting.