Error with espressif8266_stage in Visual Studio Code with platformio

I just ran pio update in Visual Studio Code with platformio. Now I get the following error when I open the IDE:

PlatformIO: IntelliSense Index failed: Error: Detected unknown package ‘espressif8266_stage’

I have verified that espressif8266_stage is installed correctly by running platformio platform install GitHub - platformio/platform-espressif8266: Espressif 8266: development platform for PlatformIO, so that is not the problem.

When I try to build a project using the espressif8266_stage platform I get

PlatformManager: Installing espressif8266_stage
Error: Detected unknown package ‘espressif8266_stage’
The terminal process terminated with exit code: 1

in the console. What is going on?

Use platform = espressif8266@4f59cef or whatever version pio platform list gives you. It’s due to commit Drop "stage" suffix from dev/platform name · platformio/platform-espressif8266@a05b810 · GitHub which removed _stage suffix from platform name. Now staging version has the same platform name as the stable one.