Missing geometriesChanged signal in QHeaderView class while resizing the object.

I have used the FreezeTableWidget case sample As i was needing the same feature.
While debugging my usage, i found a case where initial allignment of the 2nd table is incorrect. After analysis i found that:

• main table is having vertical header.
• this vertical header is resized at some point during initialization
• No geometriesChanged() signal is emitted while the size is altered.

I have checked in re-implemented API bool QHeaderView::viewportEvent(QEvent *e), and confirm that under this circompstance, the signal is missing.

To verify i have build special derived version of QHeaderView that emit the signal. My display get ok.

I attached a screenshot. I can be seen some alignment error on the 1st column (due to missed resize operation).
I also attach an updataed (improved)code for the Qt example that perform better.