What should be the n_calls when continuing the search

[diegolovison]

In the document https://github.com/scikit-optimize/scikit-optimize/blob/master/examples/interruptible-optimization.py#L106 the n_calls is the same. It means that the code will be iterated n_calls

scikit-optimize/skopt/optimizer/base.py

Line 297 in a2369dd

for n in range(n_calls):

.

When restoring shouldn't be n_calls - len(x0)

Thanks,