[Exist-open] Question on xmldb:reindex

[Matthias R. <mat...@gm...>]

Hi all,
how do I trigger a re-indexing immediately after installing an application?

I load an .xar file via launcher, its repo.xml has

<finish>post-install.xql</finish>

and post-install.xql is like:

let $login := xmldb:login('/db/apps/coll', 'admin', 'pw')
let $result  := xmldb:reindex('/db/apps/coll')
return
    <reindexed n="{$login}">{$result}</reindexed>

post-install.xql is not called after unpacking the repo-xar according to
Monex.
It returns true called directly via  (after running a while) but does not
create an index, the same even without xmldb:login (which I would rather
avoid admin credentials in xar-file).

tested in 5.2.0, 6.0.1 and 6.4.1.

any help is welcome.
thanks,
Matthias