Git Branching Bring changes of other branch into current without merging or history easy command

Описание: Git Branching
Bring changes of one branch(B2) into other/current(B1) without merging or history

checkout you current branch using below command
git checkout b1

below moves changes into Stages Changes section
git checkout b2 -- .

below moves changes into Changes section
git restore --source b2 -- .