$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-hashtable.git /var/lib/mock/f38-build-side-42-init-devel-1406940-31263/root/chroot_tmpdir/scmroot/rust-gix-hashtable
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1406940-31263/root/chroot_tmpdir/scmroot/rust-gix-hashtable'...
$ git fetch origin f86a932ddb8630a80ae8add997115982e7d29b4f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-hashtable
 * [new ref]         f86a932ddb8630a80ae8add997115982e7d29b4f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f86a932 Update to version 0.4.0 (rhbz#2236551)