Cannot run flutter-web from stable image: file not found

[g2010a]

It seems the flutter-web entrypoint is no longer copied into the stable image since 98824a3 , although it can be found in the dev image. The instructions in https://github.com/matsp/docker-flutter/blob/master/README.md#flutter-web lead to the error

docker: Error response from daemon: OCI runtime create failed: container_linux.go:367: starting container process caused: exec: "flutter-web": executable file not found in $PATH: unknown.