$ git clone -n https://src.fedoraproject.org/rpms/rust-fallible-streaming-iterator.git /var/lib/mock/f39-build-1489555-34501/root/chroot_tmpdir/scmroot/rust-fallible-streaming-iterator
Cloning into '/var/lib/mock/f39-build-1489555-34501/root/chroot_tmpdir/scmroot/rust-fallible-streaming-iterator'...
$ git fetch origin 5966085a69773493727b538c64bf12f2e94bf191:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-fallible-streaming-iterator
 * [new ref]         5966085a69773493727b538c64bf12f2e94bf191 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5966085 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild