v1.17.2

Merge preview: contained facts. No API change; API level stays 29.

A fact that is contained in a fact of the other individual – same first line, every further line present there too, but the other version has more lines (birth with date only next to birth with date and place) – is now reported as same and not suggested for keeping; the more complete version stays, whichever individual it belongs to. Before, both births would have been kept.