$ git clone -n https://src.fedoraproject.org/rpms/ghc-abstract-deque.git /var/lib/mock/f40-build-742437-110760/root/chroot_tmpdir/scmroot/ghc-abstract-deque
Cloning into '/var/lib/mock/f40-build-742437-110760/root/chroot_tmpdir/scmroot/ghc-abstract-deque'...
$ git fetch origin 9da474f669b7a8a7d9dd7621967e9a5bed03f1fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-abstract-deque
 * [new ref]         9da474f669b7a8a7d9dd7621967e9a5bed03f1fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9da474f bump release