[TMP] Reset functionality doesn't work for the "Order in Layer" property under the TMP_Sub Mesh (Script)

On resetting the TMP_Sub Mesh (Script) component, the "Order in Layer" property is not getting set to the default value. refer attached video

Steps to repro:
1. Create a new project
2. Windows > Package Manager > TextMeshPro(3.03) > Update.
3. Hierarchy > Right-click > Create Empty
4. Hierarchy > GameObject > Inspector > Add Component >TMP_Sub Mesh (Script) > Add > change properties
5. Reset TMP_Sub Mesh (Script) component.

Actual Result:
"Order in Layer" Property from TMP_Sub Mesh (Script) component is not resetting.

Expected Result:
"Order in Layer" Property from TMP_Sub Mesh (Script) component gets reset.

Reproducible in:
2021.1.0a3, 2020.2.0b10, 2020.1.0a1, 2018.4.26f1 with Package Version 3.0.3, 3.0.1, 2.1.0, 0.1.2

Environment:
Windows 10 and macOS 10.14