For a Multibranch Pipeline job with the following configuration,
using Scripted Pipeline syntax with the following checkout step,
I'm getting the following stack trace:
Indeed, I can see that no constructor of the GitSCMSourceDefaults class has this @DataBoundConstructor attribute, as the error says. Is this something that needs to be updated?
I mention the Disable GitHub Multibranch Status plugin we're using (this is a Test environment where we test new Jenkins plugins) in case it's actually the source of the incompatibility here.