$ git clone -n https://src.fedoraproject.org/rpms/rust-libdbus-sys.git /var/lib/mock/f45-build-42870-797/root/chroot_tmpdir/scmroot/rust-libdbus-sys
Cloning into '/var/lib/mock/f45-build-42870-797/root/chroot_tmpdir/scmroot/rust-libdbus-sys'...
$ git fetch origin 6e0e0a44231bc3bf3835a1911edc3db3b7583fe5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-libdbus-sys
 * [new ref]         6e0e0a44231bc3bf3835a1911edc3db3b7583fe5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e0e0a4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild