文本中的逻辑错误

In the exercise "Introduction 3: Merging Branches in Git", I found a wording that misleads the learner. In the text, after clicking the "git merge bugfix" button, there is a phrase that says, "Each commit becomes the color of its branch. If it contains changes from two branches at once, it becomes a color mixed from the colors of the parent branches." The second sentence misleads the learner, because they get the impression that after the C4 commit command, the color should be mixed, because it contains changes from two branches. However, the color of commit C2 changes, and the reason for this is not obvious to a beginner in Git.