* wdired.el (wdired-change-to-wdired-mode, wdired-finish-edit)
(wdired-search-and-rename): Simplify code. (wdired-preprocess-files, wdired-preprocess-perms): Make read-only property of preceding character rear-nonsticky to avoid that it can be modified. Put old-name and old-link properties on character preceding name and replace put-text-property by add-text-properties. (wdired-get-filename, wdired-get-previous-link): Get old-name and old-link properties from character preceding name and simplify code. (wdired-preprocess-perms, wdired-set-bit, wdired-toggle-bit) (wdired-perms-to-number): Make local-map property rear-nonsticky to avoid that text following permissions may be modified. Use add-text-properties instead of put-text-property when changing a permission bit. (wdired-change-to-dired-mode): Remove stickiness properties.
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