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RNN GRU cell complains about reusing weights

See original GitHub issue

When I run this example I get the following error: ValueError: Attempt to reuse RNNCell <tensorflow.contrib.rnn.python.ops.core_rnn_cell_impl.GRUCell object at 0x115eb2630> with a different variable scope than its first use. First use of cell was with scope 'rnn/multi_rnn_cell/cell_0/gru_cell', this attempt is with scope 'rnn/multi_rnn_cell/cell_1/gru_cell'. Please create a new instance of the cell if you would like it to use a different set of weights. If before you were using: MultiRNNCell([GRUCell(...)] * num_layers), change to: MultiRNNCell([GRUCell(...) for _ in range(num_layers)]). If before you were using the same cell instance as both the forward and reverse cell of a bidirectional RNN, simply create two instances (one for forward, one for reverse). In May 2017, we will start transitioning this cell's behavior to use existing stored weights, if any, when it is called with scope=None (which can lead to silent model degradation, so this error will remain until then.)

I tried updating line 79 in rnn_train.py to: multicell = rnn.MultiRNNCell([dropcell for _ in range(NLAYERS)], state_is_tuple=False) but that did not change anything. I am running TensorFlow 1.1.0 on mac with Python 3.5 in a conda environment.