If the Scene Hierarchy is collapsed and a Tilemap object is created then Scene Hierarchy remains in collapse state. it doesn't expand automatically as it happens when other objects are created. Refer attached video

Steps to repro:
1. Create a new project
2. Make sure that Scene Hierarchy is a collapsed
2. Hierarchy > Create > 2D Object > Tilemap

Actual Result:
On creating Tilemap object Scene Hierarchy is does not expand if it is collapsed.

Expected Result:
Scene hierarchy expands automatically when a Tilemap object is created.

Reproducible on:
2020.1.0a10, 2019.3.0b8, 2019.2.0f1, 2019.1.11f1, 2018.3.0f2, 2018.1.0f2, 2017.4.27f1, 2017.3.0f3

Environment:
Windows 10 & macOS 10.14