This idea has been merged into another idea. To comment or vote on this idea, please visit APP-I-3780 Don't remove idea contents when switching products.
I typed a long idea into the ideas portal and realised it could be used for a different department too. At my workplace, we use the product categories to separate what kind of product the idea is and what department it relates to. When I switched the "product" it reset the entire idea form.
This could also happen if someone realises that their idea is more a process improvement rather than a product or feature, the entire form would reset.