Starting with commit 2f3b873a49, when the path contains a specifier
and the argument is omitted, tmpfiles used to perform specifier
expansions twice: first specifier expansion was applied to the path
itself, and afterwards the result of the first expansion was used
in the constructed argument and expanded once again.
Resolves: #26244
Fixes: 2f3b873a49 ("tmpfiles: copy/link /usr/share/factory/ files when the source argument is omitted")