After connecting to a local dev container using Visual Studio Code and trying to clone a private project from Github I got the following error:
Cloning into 'myProject'... warning: url has no scheme: helperselector fatal: credential url cannot be parsed: helperselector
The only way I could remove this error was deleting the helperselector settings. So open the git config with:
git config --edit --global
and remove the the helperselector block (the first two lines). You will now get asked again for your credentials when cloning a project.