Unity Timeline package disappears from the list after removing when the project is opened with 2D Template

Steps to reproduce:
1) Create a new project with 2D Template
2) Window > Package manager
3) Remove Unity Timeline (You have to remove the timeline package while "Loading packages" is displayed at the bottom left of the Package manager window.)
4) Package manager > Click on All packages list

Actual result: Unity Timeline package disappears from the all packages list
Expected result: Unity Timeline package appears on all package list after removing.

Occurring on: 2019.2.0b2

Working fine:
2019.2.0b1 (Timeline package version 1.0.0)

Notes:
1) Unity Timeline is a verified package introduced in 2019.2.0b2 (1.1.0)
2) Previous version is not available