Installed build targets are not shown while opening an existing project.

Steps to repro:
1. Install unity with any build target. (Android, iOS, WebGL etc.)
2. Create a new project.
3. Close unity editor.
4. Open HUB.
5. Open 'Advanced Open' window for the newly created project.
6. Click on installed build targets.

Actual Result:
Installed build targets are not shown

Expected Result:
Installed build targets are shown.

Reproducible on:
2019.2.0a9, 2019.2.0a7

Works fine on:
2019.2.0a6, 2019.1.0b8

Environment:
Windows and MAC