TYPO3 Core

Please, when you add a file, then this should only be a patch file.
Use a command like this to generate it:

diff -ru path-original/fe_adminLib.inc path-modified/fe_adminLib.inc > fe_adminLib.inc.diff

This is wrong.
see
http://typo3.org/documentation/document-library/references/doc_core_tsref/current/view/11/3/

The setfixed must be set to TRUE before the further settings will be considered.
------------------
setfixed boolean /properties
Allows set-fixed input, probably coming from a link in an infomail or notification mail.

This is my TS

setfixed{
    approve._FIELDLIST = uid,pid
    DELETE._FIELDLIST = uid,pid
    hidden=0
  }

so it's my fault

Do I need to set

setfixed = 1

before ?

Yes. activate this with

setfixed = 1

Does it work for you then? I so, I will close this issue soon.

As metioned above it could be closed.

Setting it to true first would fix it...

Closed, no change required.