$ git clone -n https://src.fedoraproject.org/rpms/rust-simplelog0.11.git /var/lib/mock/f38-build-side-43-rust-devel-1411663-31436/root/chroot_tmpdir/scmroot/rust-simplelog0.11
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1411663-31436/root/chroot_tmpdir/scmroot/rust-simplelog0.11'...
$ git fetch origin a34970000562770db064f6a8bf02382b0560d072:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-simplelog0.11
 * [new ref]         a34970000562770db064f6a8bf02382b0560d072 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a349700 Initial import (simplelog 0.11 compat package)