Undo.cpp: m_viewstates.size() < 0 ?

Stefan,

in Undo.cpp is this code
     if (m_viewstates.size() < m_originalstate)
         // Can never get back to original state now
         m_originalstate = 1; // size() is always a multiple of 3

What is it for ? How can be m_viewstates.size() < 0 ?

-- 
Oto BREZINA, Printflow s.r.o., EU
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