$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-traverse.git /var/lib/mock/f40-build-1858920-24992/root/chroot_tmpdir/scmroot/rust-gix-traverse
Cloning into '/var/lib/mock/f40-build-1858920-24992/root/chroot_tmpdir/scmroot/rust-gix-traverse'...
$ git fetch origin 6908a479d19245438bb746b1785e75e9a007afac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-traverse
 * [new ref]         6908a479d19245438bb746b1785e75e9a007afac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6908a47 Update to version 0.39.2 (rhbz#2299591)