How to reproduce:
1. Open the attached "repro.zip" project
2. In Build settings, switch Target Platform is set to "UWP"
3. Click the "Build" button
4. Create an empty folder and select it
5. Build the project
6. Wait for the build process to fail
-- When the build process fails, the folder that was selected for the build is deleted.

Expected: The folder does not get deleted.

Reproducible with - 2018.3.0a4, 2018.3.13f1, 2019.1.0a1, 2019.1.0f2, 2019.2.0a12
Not reproducible with - 2017.4.25f1*, 2018.3.0a1, 2018.3.0a3

* - tested with different project

Notes:
- Folder does not get deleted if it contains any files or folders inside.
- An empty folder that already existed before (not created on step 4), would also be deleted if it was selected for the UWP build and it failed.