https://bugs.kde.org/show_bug.cgi?id=464870
--- Comment #8 from Thomas Baumgart <tbaumg...@kde.org> ---
I would not want to check that before every loop but in a central spot. If
start is -7 and end is -1 then the for loop still gets executed because -7 is
less than -1. The crash happens on this line
symbol = m_file->m_model->item(row, symbolCol)->text().trimmed();
and with row being negative, m_file->m_model->item() will definitely return a
null pointer. OTOH, it could be that the item does not even exist. In this
case, item() also returns a null pointer according to the Qt docs.
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