[sr-dev] Freeze rules and undoing a needless string copy

Hello, i'm not aware of the exact rules regarding the bug-fixing freeze of the master branch, hence this question. I accidentally introduced a needless string copy in sql_xquery(), sql_pvquery() and auth_db's load_credentials because i was unaware of the fact that pv_setf_t () already requires implementations to implement a string copy of their own. As this is not strrictly a bug (everything works well but just a little less efficient), would removing this needles copy violate the 'freeze' rules, or can i consider it a bug fix? The patch i'm proposing to commit is attached. -- Alex Hermann