Payment information does not get retracted properly

[sigpie]

If incorrect payment information is submitted to the bot, this can't be corrected without opening a new connection.

Example:

This generates the error output:

13.3.19 19:04:31.934 [taskScheduler-3] INFO  w.p.p.b.a.p.PreconditionUnmetAction - Precondition unmet
13.3.19 19:04:32.415 [taskScheduler-3] INFO  w.p.p.b.a.p.PreconditionUnmetAction - Payment not possible yet, missing necessary Values: 
Invoice: More than 1 values 

This might be due to the saved information not being deleted after a retraction.

[quasarchimaere]

not a bug shacl constraint validation go across the whole message chain, in order for this to work you "simply" have to retract the first payment detail message

[sigpie]

In this case the issue is that this process isn't clear at all. The bot should either tell the user what to do or, if possible, even initiate the necessary steps.