$ git clone -n https://src.fedoraproject.org/rpms/rust-bimap.git /var/lib/mock/f45-build-40461-772/root/chroot_tmpdir/scmroot/rust-bimap
Cloning into '/var/lib/mock/f45-build-40461-772/root/chroot_tmpdir/scmroot/rust-bimap'...
$ git fetch origin 5b7f88b246eb9a4196e3bd38bd49ee5526318da2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-bimap
 * [new ref]         5b7f88b246eb9a4196e3bd38bd49ee5526318da2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b7f88b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild