Everything is very bad ... If there were no fixations, and if there are no "Cancellations" options of previous actions in individual documents, the changes will hardly be returned.Sorry. - DimXenon
one
Change history (of Netbeans itself) to help you - Dmitriy Simushev
git add), then this solution will work: Is it possible to return unsaved files aftergit checkout .? - Nick Volynkin ♦