黄云龙 d2ab5bb819
fix(sandbox): str_replace on empty file only returns OK when old_str is empty (#4079)
str_replace returned "OK" whenever the target file was empty, silently
reporting success even when the model asked to replace a non-empty string
that could not possibly be present. Only short-circuit to "OK" when old_str
is also empty; otherwise return the standard not-found error.
2026-07-12 23:04:59 +08:00
..