$ git clone -n https://src.fedoraproject.org/rpms/rust-rlimit.git /var/lib/mock/f45-build-44461-813/root/chroot_tmpdir/scmroot/rust-rlimit
Cloning into '/var/lib/mock/f45-build-44461-813/root/chroot_tmpdir/scmroot/rust-rlimit'...
$ git fetch origin e6e1ed8d8fd9da7768cbf97c7fc322865054ec61:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rlimit
 * [new ref]         e6e1ed8d8fd9da7768cbf97c7fc322865054ec61 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6e1ed8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild