What vouches for an element the analyst drew by hand. It is a source like any
other, so graph.removeBySource('manual') reaches hand-drawn work and undoing a
creation removes the element only when nothing else still vouches for it.
A hand-created node therefore reports ['manual'] from getSources(), not
['seed'].
What vouches for an element the analyst drew by hand. It is a source like any other, so
graph.removeBySource('manual')reaches hand-drawn work and undoing a creation removes the element only when nothing else still vouches for it.A hand-created node therefore reports
['manual']fromgetSources(), not['seed'].