$ git clone -n https://src.fedoraproject.org/rpms/rust-monitord-exporter.git /var/lib/mock/f42-build-3264060-41244/root/chroot_tmpdir/scmroot/rust-monitord-exporter
Cloning into '/var/lib/mock/f42-build-3264060-41244/root/chroot_tmpdir/scmroot/rust-monitord-exporter'...
$ git fetch origin 25b75df6bf8209aae18b08313aa1255d4574d48c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-monitord-exporter
 * [new ref]         25b75df6bf8209aae18b08313aa1255d4574d48c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25b75df Rebuild for rust-monitord 0.12.1; Fixes: RHBZ#2343008