Created attachment 88047 [details]
Assigning a new person the system crashes
*** This bug has been marked as a duplicate of bug 326586 ***
Problem is fixed with new 7.0.0-beta1 through this long story from this bug
You can test digiKam 7.0.0-beta1 with bundle available here:
Don't hesitate to give us a fresh feedback about his entry.
Thanks in advance