$ git clone -n https://src.fedoraproject.org/rpms/rust-leb128.git /var/lib/mock/f45-build-42890-797/root/chroot_tmpdir/scmroot/rust-leb128
Cloning into '/var/lib/mock/f45-build-42890-797/root/chroot_tmpdir/scmroot/rust-leb128'...
$ git fetch origin f6a6a98269c3af7b0fe9c44e3ede7da902f391ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-leb128
 * [new ref]         f6a6a98269c3af7b0fe9c44e3ede7da902f391ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6a6a98 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild