Why does Tik Tok shoot twice every time?

This is a new function of Tik Tok. When shooting, the front camera and the rear camera will be activated, so it will be shot twice. The way to cancel is to turn off the dual cameras. Here are the specific steps.

Demo version Tik Tok 23.9.0

1, first open Tik Tok, and then click the message as shown in the figure below:

2, and then click Tik Tok time as shown in the figure below:

3, and then click the dual-camera icon as shown in the figure below:

4, and then click on the close double shot as shown in the figure below:

5. Then click the shoot button in the middle, as shown in the figure below:

6. This is a good shot, as shown in the following figure: