Binning seems to really shift the spectrum m/z

[jcharkow]

Seems that in this example of an extracted spectrum, when binning is turned on there is a big shift in the m/z (by 2 Da).

Code:
https://pyopenms-viz.readthedocs.io/en/latest/gallery/ms_bokeh/plot_spectrum_dia_ms_bokeh.html

Add
bin_peaks = False

Add nothing (bin_peaks = True)

Top image is what expect from dataframe.

Note: I am working on branch #39 so I am not sure if issue is coming from there.