Steps to reproduce:
1.Open an article in read mode in two different tabs of same browser or in two different browsers.
2.Now edit the page using one browser or tab
3.Save the change
4.Now open the same article with VE using another browser or tab
5.Click on "cancel"
After step 4 the change made in step 2 by another browser or tab are correctly reflected in the edit mode .
But after pressing cancel on step 5 , it has been observed that the readmode is still not showing the change done in step 2 unless user refreshes it.
It will be better if both Edit mode and Read mode shows consistent content even if the change is made by other user/browser session
Test Environment: http://en.wikipedia.beta.wmflabs.org/
Browser: Chrome Version 26.0.1410.65 & FF 25
OS: MAC OS X 10. 8. 5