$ git clone -n https://src.fedoraproject.org/rpms/rust-libhandy-sys.git /var/lib/mock/f38-build-side-42-init-devel-1393979-31050/root/chroot_tmpdir/scmroot/rust-libhandy-sys
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1393979-31050/root/chroot_tmpdir/scmroot/rust-libhandy-sys'...
$ git fetch origin 82812c49fed26bdac9684dca33a6febc577f837f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-libhandy-sys
 * [new ref]         82812c49fed26bdac9684dca33a6febc577f837f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82812c4 Update to version 0.10.0; Fixes RHBZ#2168959