Qt translations Rule writes to source directory

I have the following product:

import qbs 1.0

Product {
    type: "qm"
    name: "translations"
    Depends { name: "Qt.core" }
    files: "*.ts"

    destinationDirectory: project.locale_install_dir // == "translations"

    Group {
        fileTagsFilter: product.type
        qbs.install: true
        qbs.installDir: product.destinationDirectory
    }
}

When building this, the resultant .qm file gets written to my source directory - {source}/translations/translations/blah.qm.

Reason for this is... Qt.core.qmFilesDir, which is set to product.destinationDirectory, is a path. The location of my translations QBS file is {source}/translations, so qmFilesDir then becomes {source}/translations/translations, an absolute path, joined with the file name in the qm Rule. Solution: qmFilesDir should be a string.

This regression was introduced in fdd6cb3 two weeks ago.

Guess we have to be a little more careful about using the path type.