Answer
Choose Keep Draft to preserve your work or Replace to accept the incoming content. Suggested native conversation shares instead merge into the existing draft. Text or attachments you add while an earlier send finishes remain a new draft.
Before sending a forward, review its preview and remove any unwanted item. Polls, quizzes, flashcards and checklists show a compact artifact preview. Images and videos keep their ordinary thumbnails. The highlighted destination row and selection circle show which chat you selected.