qmake generates wrong paths in the uninstall section

On Mac OS X 10.7.3:
1) Download and open the attached Qt project in Qt Creator.
2) From Qt Creator's Project Tree open the qmakeInstallProblem.pro.
3) Note the following lines in the project file:

appSettings.files = $${PWD}/settings/*
appSettings.path = "$${OUT_PWD}/Application Settings"
# note the space character between "Application" and "Settings"

INSTALLS += appSettings

4) From Qt Creator open Build -> Run qmake. You don't have to build the project.
5) Go to the build folder for the current build configuration. There should be only one file - "Makefile".
6) Open the make file and note the install and uninstall sections:

install_appSettings: first FORCE
...
-$(INSTALL_FILE) .../settings/config1.txt ...\Application\ Settings/
...

uninstall_appSettings:  FORCE
...
-$(DEL_FILE) -r $(INSTALL_ROOT)/.../Application Settings/config1.txt 
...

Notice that the:
1. install section mentions the path "Application Settings" as:
Application\ Settings

2. uninstall section mentions the "Application Settings" path differently:
Application Settings - this is wrong. The space character is recognized as such by the Terminal by adding the \ control character before it.

7) Now open up the /Applications/Utilities/Terminal and navigate to the build directory.
8) Type: make install - the build directory is populated with the directories and files specified by the two additions to the INSTALL qmake variable.
9) Now type in the Terminal: make uninstall - the files added by "make install" are not removed.