ZeroDivisionError when verbose=True

With verbose=False everything works fine

>> u = umap.UMAP(verbose=False, n_neighbors=15, n_components=256, metric='euclidean', n_epochs=100, min_dist=0.1)
>> u.fit(X)

With verbose=True it throws ZeroDivisionError exception

>> u = umap.UMAP(verbose=True, n_neighbors=15, n_components=256, metric='euclidean', n_epochs=100, min_dist=0.1)
>> u.fit(X)
UMAP(a=None, angular_rp_forest=False, b=None, init='spectral',
   learning_rate=1.0, local_connectivity=1.0, metric='euclidean',
   metric_kwds=None, min_dist=0.1, n_components=256, n_epochs=1,
   n_neighbors=15, negative_sample_rate=5, random_state=None,
   repulsion_strength=1.0, set_op_mix_ratio=1.0, spread=1.0,
   target_metric='categorical', target_metric_kwds=None,
   target_n_neighbors=-1, target_weight=0.5, transform_queue_size=4.0,
   transform_seed=42, verbose=True)
Construct fuzzy simplicial set
Construct embedding
---------------------------------------------------------------------------
ZeroDivisionError                         Traceback (most recent call last)
<ipython-input-149-b9c10a7f4872> in <module>()
---> 15         u.fit(X)

/usr/local/anaconda/lib/python3.6/site-packages/umap/umap_.py in fit_transform(self, X, y)
   1521             Embedding of the training data in low-dimensional space.
   1522         """
-> 1523         self.fit(X, y)
   1524         return self.embedding_
   1525 

/usr/local/anaconda/lib/python3.6/site-packages/umap/umap_.py in fit(self, X, y)
   1493             self.metric,
   1494             self._metric_kwds,
-> 1495             self.verbose,
   1496         )
   1497 

/usr/local/anaconda/lib/python3.6/site-packages/umap/umap_.py in simplicial_set_embedding(data, graph, n_components, initial_alpha, a, b, gamma, negative_sample_rate, n_epochs, init, random_state, metric, metric_kwds, verbose)
    974         initial_alpha,
    975         negative_sample_rate,
--> 976         verbose=verbose,
    977     )
    978 

ZeroDivisionError: integer modulo by zero

Environment:

>> print(umap.__version__, sys.version, sys.platform)
0.3.2 3.6.2 |Anaconda custom (64-bit)| (default, Sep 30 2017, 18:42:57) 
[GCC 7.2.0] linux

Start in umap/umap_.py at simplicial_set_embedding and the call path shown in the traceback, then reproduce with the supplied UMAP parameters and verbose=True. Compare the verbose and non-verbose paths; done means the example no longer raises ZeroDivisionError and verbose output completes normally.