Attached container config: Protect against syntax errors in config

Hello,
Since I updated Docker Desktop to 2.2.0.5(43884), "Dev Containers" terminal reports the following error when I try to open a folder in a running container:

[0 ms] Start: Resolving remote
[1 ms] Setting up container azfunc-node

[19 ms] Error: Can not add index to parent of type property
        at m (c:\Users\yvand\.vscode\extensions\ms-vscode-remote.remote-containers-0.106.0\dist\extension.js:1:52999)
        at Module.R (c:\Users\yvand\.vscode\extensions\ms-vscode-remote.remote-containers-0.106.0\dist\extension.js:1:57710)
        at c:\Users\yvand\.vscode\extensions\ms-vscode-remote.remote-containers-0.106.0\dist\extension.js:1:1049226

The exact steps are the following:

• I attach to a running container
• It opens succesfsully a folder by default (always the same) (it contains a NodeJS project)
• I click "Open a folder" and choose any different folder (I tested with a new empty one)
• It fails with the error above

I use image mcr.microsoft.com/vscode/devcontainers/typescript-node:12.
I tried to create a new container from this image but the error is the same

Docker Desktop 2.2.0.5(43884)
ms-vscode-remote.remote-wsl Version: 0.42.4

VSCode:
Version: 1.43.2 (user setup)
Commit: 0ba0ca52957102ca3527cf479571617f0de6ed50
Date: 2020-03-24T07:38:38.248Z
Electron: 7.1.11
Chrome: 78.0.3904.130
Node.js: 12.8.1
V8: 7.8.279.23-electron.0
OS: Windows_NT x64 10.0.18363