Adding further processes in a complexer hierarchy from Kalliope throws a misleading ruleset error

[subhhwendt]

Describe the bug
Kitodo 3 denies creating a process in a complexer hierarchy with a hint for a mistake in ruleset - but a retry in choosing the parent process leads to success in process creating.

To Reproduce
Steps to reproduce the behavior:

1. Importing a first letter of a new bundle in Kitodo will work including all requested hierarchy level - screenshot 1
2. The next letter leads at first to this message in the tab Titelsatzverknüpfung: Sie können den Vorgang nicht mit diesem Titelsatz verknüpfen, da der ausgewählte DocType an keiner Stelle als Kind erlaubt ist" - screenshot 2
3. Repeating the choice of the parent process in the tab "Titelsatzverknüpfung" will bring success in creating the same process with the same ruleset - screenshot 3

Expected behavior
Adding processes in complex hierachies without misleading errors

Screenshots
Screenshot 1

Screenshot 2 Error message

Screenshot 3 Success with the same process and ruleset

Release
Release 3.5

[solth]

@subhhwendt I do remember encounteriung this error in the past. However, I am unable to reproduce it in the current master. Could you test with your preview branch whether the problem has been fixed for you, too?

[subhhwendt]

I have tested the described constellation with the branch you prepared for us. And I can confirm that an import of a letter in an existing hierarchy works well without any error message :)

[solth]

Closed as not reproducible.

[subhhwendt]

I have to reopen this nasty issue for Version 3.6.1 :(

[solth]

The cause for this issue seems to be that determining the valid points where a new child process can be inserted into an existing process hierarchy uses the doc type from the first tab "Process data", but the doc type classification has not yet been completed at this point, so the "insertion tree" is created with the (wrong) default value of the doc type selection menu.