[MCPE-144870] Command Tp(Teleport) work unexpected

Summary:

The facing function of command tp will make the RX axis value obtained by the command executor inaccurate.

Steps to Reproduce:

Execute the following command in the chat bar.

Note
Each time a command is executed, the RX axis value of the command executor needs to be recorded.

/tp ~ ~ ~ facing ~ ~1 ~

/tp ~ ~ ~ facing ~1 ~10 ~

Observed Results and Expected Results:

Commands	Use	Expected Results	Observed Results
/tp ~ ~ ~ facing ~ ~1 ~	Make the target look at position "~ ~1 ~".	RX=-90° (Target is looking straight up)	RX≈-45° (The target looks upward approximately 45°)
/tp ~ ~ ~ facing ~1 ~10 ~	Make the target look at position "~1 ~10 ~".	RX=-arctan(10)≈-84.289° (The target looks upward approximately 84.289°)	RX≈-45° (The target looks upward approximately 45°)

* "RX" refers to the value on the RX axis after the command executor executes the above command.

The RX axis value refers to the vertical rotation Angle of the entity(X-axis rotation Angle).

Notes:

When using the facing function of command tp, if the facing position will make the RX axis value of the target meet "RX∈(-45°,45°)", the error of RX axis value will increase with the increase of |RX|.
Generally speaking, when the facing position will make RX meet "RX∈[45°,90°]∪[-90°,-45°]", the final RX axis value obtained by the target is always about 45° or -45°.

Problem links:

Is Duplicated By/Relates to
1. MCPE-131283 Since a long time now the facing command in mcbe is broken. Completely
2. MCPE-114950 Since a long time now the facing command in mcbe is broken. Completely
3. MCPE-103822 The facing feedback of "/tp" command is wrong