Crash when dragging an item over WebEngineView

Application crashes when you drag an item over WebEngineView. Note that WebEngineView does not have to be a drop target, just dragging an item over it will cause the crash. There's QML scene example attached. This can be also reproduced on the official Drag&Drop examples, just add WebEngineView somewhere on the scene and drag over it.

The crash log:

Program: C:\Qt\Qt5.8.0\5.8\msvc2015\bin\Qt5Cored.dll
Module: 5.8.0
File: global\qglobal.cpp
Line: 3070

ASSERT: "!inEvent" in file items\qquickdrag.cpp, line 240 <Unknown File>: QML QQuickDragAttached: active cannot be changed from within a drag event handler