message: Don't accidentally insert bounding box data while trying to look it up
diff: @@ -1829,6 +1829,7 @@ void BufferViewer::resetArcball()
  {
  QMutexLocker autolock(&m_BBoxLock);
  + if(m_BBoxes.contains(m_Ctx.CurEvent()))
  bbox = m_BBoxes[m_Ctx.CurEvent()];
  }
  @@ -3221,6 +3222,7 @@ void BufferViewer::on_autofitCamera_clicked()
  {
  QMutexLocker autolock(&m_BBoxLock);
  + if(m_BBoxes.contains(m_Ctx.CurEvent()))
  bbox = m_BBoxes[m_Ctx.CurEvent()];
  }
  