[BUGFIX] The raw search must check if field exists

The "raw search in all fields" must check if a field
exists in the table before building up the query.

Resolves: #63273
Releases: master, 6.2
Change-Id: I115ea3fb973c500308bb6a9f6799e9a3af65edcc
Reviewed-on: http://review.typo3.org/34512
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>