Android Kotlin Fundamentals codelab: mainly about overlapping textview and button

[arsnyan]

Describe the problem
I'll start with the name of the task - it shouldn't be TextEdit, but TextView.

Next, while choosing gravity mode "center_ver" (which is actually "center_vertical") solves the task, it does not replicate the issue described later about overlaping count button and text view. So, really, I can't understand what should I fix in the next codelab lesson if it ain't broken.

In which lesson and step of the codelab can this issue be found?
Lesson number 01.2 Part A + task #4.

Additional information
https://codelabs.developers.google.com/codelabs/android-training-layout-editor-part-a/index.html?index=..%2F..android-training#5

codelab: android-fundamentals