$ git clone -n https://src.fedoraproject.org/rpms/rust-tracing_facade.git /var/lib/mock/f41-build-side-1-2761072-31747/root/chroot_tmpdir/scmroot/rust-tracing_facade
Cloning into '/var/lib/mock/f41-build-side-1-2761072-31747/root/chroot_tmpdir/scmroot/rust-tracing_facade'...
$ git fetch origin 13bb4b695211e2bb4819c86b56ad5a39a90956c6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tracing_facade
 * [new ref]         13bb4b695211e2bb4819c86b56ad5a39a90956c6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13bb4b6 Remove reference to readme file that is not included in published crates