$ git clone -n https://src.fedoraproject.org/rpms/rust-qoi.git /var/lib/mock/f38-build-side-43-rust-devel-1416637-31457/root/chroot_tmpdir/scmroot/rust-qoi
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1416637-31457/root/chroot_tmpdir/scmroot/rust-qoi'...
$ git fetch origin d1d48bf7054c04e2a8556fa06e6c2dc9df146d41:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-qoi
 * [new ref]         d1d48bf7054c04e2a8556fa06e6c2dc9df146d41 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1d48bf Initial Fedora packaging (rhbz#2233787)