I noticed that simply dragging the checkout card into one of the stash squares results in the goal condition passing despite there being no new branch.

The culprit is here: https://github.com/git-learning-game/oh-my-git/blob/main/levels/stash/stash-branch#L40 Detached head counts as a line in git branch --list

To reproduce

Start Branch from stash level
Drag checkout card into Index on main or WIP yellow squares

git-learning-game / oh-my-git

Branch from stash goal condition #141

To reproduce