INSTALLS entries with no_check_exist not picked up into deployables

With qmake adding entries to INSTALLS with non-existing files are normally skipped so no corresponding stuff appears in the Makefile. However, adding

some_thing.CONFIG += no_check_exist

overrides this and adds the corresponding rules to the Makefile even when the file does not exist (yet).

It seems Creator does not support this, because adding an entry like

some_thing.files = i_dont_exist
some_thing.path = /a/b/c
some_thing.CONFIG += no_check_exist
INSTALLS += some_thing

to a project .pro file will not add the file under the Project page's "Files to deploy" list. This is then a dealbreaker for embedded deployments since it means the file will not be deployed to the device even though it gets created at some point during the build steps.