Operating system: Windows
Graphics card: 1080Ti
Broken: (example: 2.80RC and master 687f1df5dbe2, 2019-7-18, as found on the splash screen)
**Short description of error**
It looks like the attached .blend file can expose an issue with edge loop selection failing. If you select the inner most edge loop and then extract a new set of faces along Z, you can no longer select the original edge loop with alt or with the "select edge loop" menu item. See the attached video for reproduction steps.