$ git clone -n https://src.fedoraproject.org/rpms/rust-rustdct.git /var/lib/mock/f40-build-2063538-49167/root/chroot_tmpdir/scmroot/rust-rustdct
Cloning into '/var/lib/mock/f40-build-2063538-49167/root/chroot_tmpdir/scmroot/rust-rustdct'...
$ git fetch origin 5e66dd036c8f6ccdcc612543fa04ae7ae5abe02a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rustdct
 * [new ref]         5e66dd036c8f6ccdcc612543fa04ae7ae5abe02a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e66dd0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild