$ git clone -n https://src.fedoraproject.org/rpms/rust-reedline.git /var/lib/mock/f45-build-44439-813/root/chroot_tmpdir/scmroot/rust-reedline
Cloning into '/var/lib/mock/f45-build-44439-813/root/chroot_tmpdir/scmroot/rust-reedline'...
$ git fetch origin 71c034f586a730dff351bb6d428ccdb508e7dd08:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-reedline
 * [new ref]         71c034f586a730dff351bb6d428ccdb508e7dd08 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71c034f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild