D12175: Check for valid _foregroundProcessInfo to prevent crash

[Ahmad Samir]

ahmadsamir created this revision.
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REVISION SUMMARY
  In Session::getUrl() check that _foregroundProcessInfo is valid before
  tyring to access its members.
  
  I couldn't reproduce the crash from the BR, but it is logical to call
  isValid() before accessing any ProcessInfo object members.
  
  BUG: 391447

REPOSITORY
  R319 Konsole

BRANCH
  foregroundprocess-pointer (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D12175

AFFECTED FILES
  src/Session.cpp

To: ahmadsamir
Cc: #konsole, herrold, ngraham, hindenburg
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