DeadPropertyStore let PROPPATCH set any namespace/name verbatim,
incl. names the server itself emits as live state (DAV: entirely,
plus oc:/nc:/ocs: names used by write_file_response /
write_folder_response). That either forges a live prop or stores
dead rows nothing ever reads. is_protected_property() denylists
them; both PROPPATCH handlers (native + NC) now return per-property
403 instead of storing. oc:favorite stays writable via its existing
special-case, which runs before the protection check.
M.Schmidt
0ad0ea1a43