D22404: do not dereference `current` outside guard condition

[Harald Sitter]

sitter created this revision.
sitter added a reviewer: Plasma.
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REVISION SUMMARY
  if current can be null, then clearly the one if must be nested inside
  the guard if lest it trips over the nullptr when calling `name()`.

TEST PLAN
  builds

REPOSITORY
  R871 DrKonqi

BRANCH
  save-deref

REVISION DETAIL
  https://phabricator.kde.org/D22404

AFFECTED FILES
  src/bugzillaintegration/reportassistantdialog.cpp

To: sitter, #plasma
Cc: plasma-devel, LeGast00n, jraleigh, fbampaloukas, GB_2, ragreen, Pitel, ZrenBot, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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