$ git clone -n https://src.fedoraproject.org/rpms/rust-faster-hex.git /var/lib/mock/f38-build-side-43-rust-devel-1421578-31465/root/chroot_tmpdir/scmroot/rust-faster-hex
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1421578-31465/root/chroot_tmpdir/scmroot/rust-faster-hex'...
$ git fetch origin 381f6727f426428870fd0ca7172c4dea8a36ea49:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-faster-hex
 * [new ref]         381f6727f426428870fd0ca7172c4dea8a36ea49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 381f672 Use quotes instead of backslashes to escape whitespace in license path [skip changelog]