$ git clone -n https://src.fedoraproject.org/rpms/rust-rand_jitter.git /var/lib/mock/f39-build-1494390-34542/root/chroot_tmpdir/scmroot/rust-rand_jitter
Cloning into '/var/lib/mock/f39-build-1494390-34542/root/chroot_tmpdir/scmroot/rust-rand_jitter'...
$ git fetch origin cb1c6de584cc9395134fed2e6eb86ba28f474824:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rand_jitter
 * [new ref]         cb1c6de584cc9395134fed2e6eb86ba28f474824 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb1c6de Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild