VS Code removes trailing commas when saving dart files for new projects

Question

I created a new project and VS Code condenses any trailing commas unless line lengths are very long. This is a new behaviour. Have looked all over the internet, reinstalled, deleted cache files etc. No differences in any settings file at the user or workspace level. Both same versions of flutter and dart. Both same extensions (only flutter and dart). No difference in analyzer file... so I'm completely lost. Is this a new VS Code thing? It is very annoying as I'm trying to work on UI layouts and save condenses things to one line.

Answer 1

Add the following to analysis_options.yaml in the Flutter project.

formatter:
  trailing_commas: preserve