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Warning: session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /var/www/tb-usercake/models/config.php on line 51
svoid crenameField(Concept c, S oldField, S newField) { if (c == null || eq(oldField, newField)) ret; O value = cget(c, oldField); if (newField != null) cset(c, newField, value); cset(c, oldField, null); }