macdeployqt installs QtWebEngineProcess but does not adjust its rpath to point to the bundle's framework dir

An application Bundle.app that links against QtWebEngine is packaged using macdeployqt. As expected macdeployqt copies all required dependencies into the bundle, including QtWebEngineProcess.app at

Bundle.app/Contents/Frameworks/QtWebEngineCore.framework/Helpers/QtWebEngineProcess.app

However, the executable located at

Bundle.app/Contents/Frameworks/QtWebEngineCore.framework/Helpers/QtWebEngineProcess.app/Contents/MacOS/QtWebEngineProcess

is not adjusted using install_name_tool to point to the framework library inside Bundle.app/Frameworks.

otool -lL gives:

Load command 25
cmd LC_RPATH
cmdsize 56
path /Users/hrabowski/build/qt-5.6/qtbase/lib (offset 12)
Load command 26
cmd LC_FUNCTION_STARTS
cmdsize 16
dataoff 24856
datasize 8
Load command 27
cmd LC_DATA_IN_CODE
cmdsize 16
dataoff 24864
datasize 0
@executable_path/../../../../QtWebEngineCore (compatibility version 5.6.0, current version 5.6.0)
@executable_path/../../../../../../../QtWebChannel.framework/QtWebChannel (compatibility version 5.6.0, current version 5.6.0)
@executable_path/../../../../../../../QtQml.framework/QtQml (compatibility version 5.6.0, current version 5.6.0)
@executable_path/../../../../../../../QtNetwork.framework/QtNetwork (compatibility version 5.6.0, current version 5.6.0)
@executable_path/../../../../../../../QtCore.framework/QtCore (compatibility version 5.6.0, current version 5.6.0)
/System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0)
@rpath/QtPositioning.framework/Versions/5/QtPositioning (compatibility version 5.6.0, current version 5.6.0)
@executable_path/../../../../../../../QtQuick.framework/QtQuick (compatibility version 5.6.0, current version 5.6.0)
@executable_path/../../../../../../../QtGui.framework/QtGui (compatibility version 5.6.0, current version 5.6.0)
/System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 120.1.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1226.10.1)

These are exactly the lib positions from the orignal file located in the qt build folder.

The problem is QtPositioning:
@rpath/QtPositioning.framework/Versions/5/QtPositioning
since the rpath is still pointing to outside bundle:
/Users/hrabowski/build/qt-5.6/qtbase/lib

All other libs are linked using @executable_path which is correct.