[TYPO3-seminars] register now link

[Michael Shorny]

Hi,
my "seminars" produces a bad link with "register now", it appends a

"redirect_url=http%3A%2F%2F--DOMAIN--%2Findex.php%3Fid%3D73%26tx_seminars_pi1%255Bseminar%255D%3D6%26tx_seminars_pi1%255Baction%255D%3Dregister"

and gives the error

"Eine Veranstaltung mit dieser Nummer existiert nicht." ("an events with 
this number does not exist").

with a amended link (with ://, [, ...) it works ...

typo3 4.5.2
all EXT in latest versions

If I remember correctly it worked before with typo3 4.4.4

any ideas?

Thank you,
Michael