no support in the Git support so far. Either implement Git stash (#224986) or shelve changes feature - or both of course, but one of them is a must i think.
Integrated into 'main-golden', will be available in build *201302060843* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
User: Ondrej Vrabec <firstname.lastname@example.org>
Log: #225057 - Shelve Changes for Git