Function HasUnsavedData

src/game/editor/editor.h:296–296

	void OnClose() override;
	void OnDialogClose();
	bool HasUnsavedData() const override { return Map()->m_Modified; }
	void UpdateMentions() override { m_Mentions++; }
	void ResetMentions() override { m_Mentions = 0; }
	void OnIngameMoved() override { m_IngameMoved = true; }