$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-trace.git /var/lib/mock/f40-build-2713062-72108/root/chroot_tmpdir/scmroot/rust-gix-trace
Cloning into '/var/lib/mock/f40-build-2713062-72108/root/chroot_tmpdir/scmroot/rust-gix-trace'...
$ git fetch origin a21ce9a8e4c7efa14b20d5f0a30fa0346a6a7ecf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-trace
 * [new ref]         a21ce9a8e4c7efa14b20d5f0a30fa0346a6a7ecf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a21ce9a Update to version 0.1.8 (rhbz#2269604)