Error while building project with CONFIG += object_parallel_to_source and SOURCES path containing "../"

CONFIG += object_parallel_to_source

SOURCES += main.cpp \
    ../testclass.cpp

HEADERS += \
    ../testclass.h

LINK : fatal error LNK1181: cannot open input file 'release\Develop\sandbox\testclass.obj'

14:15:04: Starting: "C:\Qt\Qt5.4.1\Tools\QtCreator\bin\jom.exe" clean
	C:\Qt\Qt5.4.1\Tools\QtCreator\bin\jom.exe -f Makefile.Release clean
	del release\main.obj release\Develop\sandbox\testclass.obj
Could not find D:\Develop\sandbox\build-untitled-qt_static-Release\release\Develop\sandbox\testclass.obj
	C:\Qt\Qt5.4.1\Tools\QtCreator\bin\jom.exe -f Makefile.Debug clean
	del debug\main.obj debug\Develop\sandbox\testclass.obj
Could not find D:\Develop\sandbox\build-untitled-qt_static-Release\debug\main.obj
Could not find D:\Develop\sandbox\build-untitled-qt_static-Release\debug\Develop\sandbox\testclass.obj
	del debug\untitled.ilk debug\untitled.idb
Could not find D:\Develop\sandbox\build-untitled-qt_static-Release\debug\untitled.ilk
14:15:04: The process "C:\Qt\Qt5.4.1\Tools\QtCreator\bin\jom.exe" exited normally.
14:15:04: Configuration unchanged, skipping qmake step.
14:15:04: Starting: "C:\Qt\Qt5.4.1\Tools\QtCreator\bin\jom.exe" 
	C:\Qt\Qt5.4.1\Tools\QtCreator\bin\jom.exe -f Makefile.Release
	cl -c -nologo -Zm200 -Zc:wchar_t -FS -O2 -MT -Zc:strictStrings -GR -W3 -w34100 -w34189 -EHsc -DUNICODE -DWIN32 -DQT_NO_DEBUG -DQT_CORE_LIB -DNDEBUG -I"..\untitled" -I"." -I"..\..\..\qt-everywhere-opensource-src-5.4.1\qtbase\include" -I"..\..\..\qt-everywhere-opensource-src-5.4.1\qtbase\include\QtCore" -I"release" -I"..\..\..\qt-everywhere-opensource-src-5.4.1\qtbase\mkspecs\win32-msvc2013" -Forelease\ @C:\Users\user\AppData\Local\Temp\main.obj.5112.0.jom
main.cpp
	link /NOLOGO /DYNAMICBASE /NXCOMPAT /INCREMENTAL:NO /SUBSYSTEM:CONSOLE "/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'" /MANIFEST:embed /OUT:release\untitled.exe @C:\Users\user\AppData\Local\Temp\untitled.exe.5112.359.jom
LINK : fatal error LNK1181: cannot open input file 'release\Develop\sandbox\testclass.obj'
jom: D:\Develop\sandbox\build-untitled-qt_static-Release\Makefile.Release [release\untitled.exe] Error 1181
jom: D:\Develop\sandbox\build-untitled-qt_static-Release\Makefile [release] Error 2
14:15:05: The process "C:\Qt\Qt5.4.1\Tools\QtCreator\bin\jom.exe" exited with code 2.
Error while building/deploying project untitled (kit: qt-static)
When executing step "Make"