Bug report

Bug summary

constrained_layout seems to place colorbars at the "extreme right" of the image. (not sure how to phrase this; see below)

Code for reproduction

f,ax=plt.subplots(2,2,constrained_layout=True)data=np.random.randn(10,10)foraainax.flat:mappable=aa.pcolormesh(data)f.colorbar(mappable,ax=ax[:,0])

Actual outcome

Expected outcome

I would like the constrained_layout version of this --- which results when settingconstrained_layout=False in theplt.subplots call above

Matplotlib version

• Operating system: Ubuntu 16.04
• Matplotlib version: 2.2.2
• Matplotlib backend (print(matplotlib.get_backend())):module://ipykernel.pylab.backend_inline
• Python version: 3.6.5
• Jupyter version (if applicable): 5.5.0
• Other libraries: