04787eef80
Change QFormDataBuilderPrivate to store a vector of QFormDataPartBuilderPrivates and pimplify QFormDataPartBuilder such that it stores a pointer to the QFormDataBuilderPrivate and an index into the vector. This makes it robust against QFDP::m_parts reallocations and we can make QFDBP copyable which has the benefit that if the user wants to "go back" to an earlier part, she can do so by storing the result of the original part() call by value. Found in API review. Task-number: QTBUG-125985 Change-Id: I56e9018e539457e9494751bdb62509f84a680889 Reviewed-by: Marc Mutz <marc.mutz@qt.io> (cherry picked from commit aca8235c753d673abe7442cdf8b628fe4e05c471) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>