dist/changes-5.6.1

+Qt 5.6.1 is a bug-fix release. It maintains both forward and backward
+compatibility (source and binary) with Qt 5.6.0.
+
+For more details, refer to the online documentation included in this
+distribution. The documentation is also available online:
+
+  https://doc.qt.io/qt-5/
+
+The Qt version 5.6 series is binary compatible with the 5.5.x series.
+Applications compiled for 5.5 will continue to run with 5.6.
+
+Some of the changes listed in this file include issue tracking numbers
+corresponding to tasks in the Qt Bug Tracker:
+
+  https://bugreports.qt.io/
+
+Each of these identifiers can be entered in the bug tracker to obtain more
+information about a particular change.
+
+****************************************************************************
+*                          Dialogs                                         *
+****************************************************************************
+
+ - [QTBUG-49058] Proper resize and default size for content.
+
+****************************************************************************
+*                          Controls                                        *
+****************************************************************************
+
+ - Fixed a memory leak in QStyleOption.

src/controls/Private/ScrollViewHelper.qml

@@ -70,10 +70,12 @@ Item {
     function doLayout() {
         if (!recursionGuard) {
             recursionGuard = true
+            blockUpdates = true;
             scrollHelper.contentWidth = flickableItem !== null ? flickableItem.contentWidth : 0
             scrollHelper.contentHeight = flickableItem !== null ? flickableItem.contentHeight : 0
             scrollHelper.availableWidth = viewport.width
             scrollHelper.availableHeight = viewport.height
+            blockUpdates = false;
             recursionGuard = false
         }
     }