rendering issues when exception is raised before cell execution completes

Reposting from jupyter/notebook issue. The code cell as appears in the screen shot is:

import ipympl
import matplotlib.pyplot as plt

def plot_something():
    plt.figure()
    plt.plot([0,2],[0,2],'-')
    plt.show()

plot_something()
raise Exception

The behavior I am seeing is different for the first time I run the cell and the next times. It is also different for different level of browser zoom levels (I am using Chrome 56.0.2924.87 on Windows 8.1)-

First time that the cell is run -
The figure appears but is not fully rendered (see image)-

If I then resize the figure using the GUI (bottom right corner), the behavior changes based on browser zoom level-

1. When using 100% zoom level (default), the figure is rendered too small. When in this state the zoom rectangle is drawn offset from the mouse pointer. The zooming is determined by the mouse pointer, it is just the drawing of the rectangle that is off.
2. When using 90% zoom level (ctrl^- once), the figure is rendered to size and the zoom rectangle is working fine.

When I rerun the cell the figure is re-rendered properly without need for resizing and independent of zoom level.

Reproduisez la cellule Python fournie dans l’intégration de notebooks ipympl avec l’environnement Chrome indiqué, y compris la première exécution, l’exception levée, le redimensionnement de la figure et les niveaux de zoom du navigateur. Comparez le rendu initial aux exécutions suivantes ; c’est terminé lorsque la figure est rendue à la bonne taille et que le rectangle de zoom reste aligné après l’exception sans nécessiter de redimensionnement ni de nouvelle exécution.