[TYPO3-commerce] Problem with special prices - no basket update on login

[Janosch Skrobek / binaryworx]

Some thoughts I have which I'm not able to perform without further help ... 

1) Maybe there is a way to have the form-submit, that updates the basket,
perform when logging in? 
2) Or simply force the "update" function when the basket page is loaded only
by its id and not by a "post" from itself or another page?

Regards
Janosch