Reproduction steps:
1. Open the attached project “playground.zip”
2. Open a new empty scene
3. Instantiate ReproPrefab in the scene
4. Select the “Sprite” in the Hierarchy
5. Observe the value of Rect Transform Scale
Expected result: The Rect Transform Scale should be [1,1,1] as set in SpriteResizer.cs
Actual result: The Rect Transform Scale is [500,500,1]
Reproducible with: 2020.3.44f1, 2021.3.18f1, 2022.2.4f1, 2023.1.0b1
Notes: according to the user, the issue is not reproducible with Transform.m_LocalScale