** Description changed:

  # Impact
- DistUpgradeFetcherKDE.py calls self._warning() but in fact _warning is not an 
instance method of the fetcher but rather a global helper. This causes early 
unhandled exceptions entirely defuncing the fetcher rendering upgrades with the 
KDE UI impossible.
+ DistUpgradeFetcherKDE.py calls self._warning() but in fact _warning is not an 
instance method of the fetcher but rather a global helper. This causes early 
unhandled exceptions to entirely defunc the fetcher rendering upgrades with the 
KDE UI impossible. NB: this only happens iff there was a problem getting the 
release notes to begin with.
  
  This was fixed in https://launchpad.net/ubuntu/+source/ubuntu-release-
  upgrader/1:15.10.4 and needs to be SRU'd into vivid as it also suffers
  from the problem.
  
  # Test Case
  - run `kdesudo -- do-release-upgrade -m desktop -f DistUpgradeViewKDE`
  - should come up with installer
  
  # Regression Potential
- None. Fetcher currently crashes 10/10 times
+ Can't break anymore than getting another undefined method exception as we do 
now.
  
  # Other Info
  In testing I didn't actually get the fetcher UI itself to display, so I 
expect there is more wrong. It would however be a good start to not have it 
crash.

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https://bugs.launchpad.net/bugs/1507886

Title:
  DistUpgradeFetcherKDE crashes on method _warning

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