• work on Enable strictPropertyInitialization #78168
• use the "TS - Strict Init" task
• collapse all in the markers panel
• expand and select a file from the markers panel
• make changes, save
• try to expand another item
• 🐛 nothing happens, the selection flashes weirdly, it takes a while to recover

Screen Capture 05.08.19, 10.37.56.mp4.zip