QHeaderView::setDefaultSectionSize different result then resizeSection

In a qtableview, calling

verticalHeader()->setDefaultSectionSize(22)

has not the same effect has

for (int i = 0; i < verticalHeader()->count(); i++)
    verticalHeader()->resizeSection(i, 22);

Try the annexed project resizeTable.zip, right click on the table and run "Launch resize", you should notice line 29 disappearing.