QGIS » QGIS Application

When opening the attribute table as a DockWidget, the map canvas is not being refreshed, so whole contents disappears. Then if I refresh it or zoom, it's back, but the canvas extent is not updated - it still includes the area occupied by the table now. As a result, zoomToFullExtent hides a part of contents 'behind' the attribute table widget. I can't find what mathod should be called to update the extents.

QgsMapCanvas::extent() returns old values
QgsMapCanvas::zoomToFullExtent() zooms to this old (too extensive) extent
QgsMapCanvas::updateFullExtent() doesn't change anything
QgsMapCanvas::adjustSize() helps, but creates artifacts

Note that if I touch the window layout, for example resize any dock or whole main window, the canvas extent becomes updated and everything begins to work properly.

I set the 'must fix for release', because it's just an ugly behaviour making a bad impression on users and probably something easy to fix.