[REG] lupdate: When using DEPENDSPATH in the .pro file lupdate no longer work.

The attached example does no longer work in 4.6.0 but it used to work in 4.5.3.

The .pro file looks like this:

CODECFORTR = UTF-8

INCLUDEPATH = . \
    .. \
    ../../../libraries/ImportExport

DEPENDPATH += $$INCLUDEPATH

SOURCES += InvoiceExporter.cpp

HEADERS += InvoiceTranslations.h

TRANSLATIONS += Language_ara.ts \
    Language_bul.ts \
    Language_ces.ts \
    Language_dan.ts \
    Language_deu.ts \
    Language_ell.ts \
    Language_eng.ts

And is placed in the app\client\Languages folder.
When runnig lupdate on this file it does not find the source files so no text is found to translate.

But if the DEPENDSPATH is removed it works.
Replacing DEPENDSPATH with VPATH does not work either.