QtCreator project multiple targets

[thru]

I think this one is very elemental but I can not catch my misunderstood.
I just want to have a project with different targets, debug and release to develop under QtCreator. If I have this pro file

QT       += core gui
 
TARGET = WTest
TEMPLATE = app
 
 
SOURCES += main.cpp\
        mainwindow.cpp
 
HEADERS  += mainwindow.h
 
FORMS    += mainwindow.ui
 
win32{
 
    debug {
        OBJECTS_DIR=T:/Tmp/ObjsD
    }
    release {
        OBJECTS_DIR=T:/Tmp/ObjsR
    }
}

QT       += core gui

TARGET = WTest
TEMPLATE = app


SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui

win32{

    debug {
        OBJECTS_DIR=T:/Tmp/ObjsD
    }
    release {
        OBJECTS_DIR=T:/Tmp/ObjsR
    }
}

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And I select the Debug target, it is, souldn't it write the objects to the t:/Tmp/ObjsD directory? (it writes to ObjsR actually)