This is a compendium of issues for which a resolution has not been found. Feel free to add to the list or comment.
Sezen translation into Ottgaz
In the hierarchy, Sezen designates hundreds of sites as "merkez," mostly for the twentieth century. What does this mean? (added 2023-07-17)
Sezen produces some very lengthy placenames using "maa". In Ottoman, he supplies a much shorter name. (added 2023-07-17)
The preferred approach may be to retain the name as it appears in Ottoman as the label, i.e. consign the material after "maa" into the alias field.