Problem:
I have a nested share, and the directory which is also a share gets the higher level authorizations.
Disclaimer:
Nested shares are very confusing, and you do better not using them!
Solution:
The folder must not be equated with the share!
Folders below a share are assigned the permissions of the share. It is not evaluated whether a subfolder within a share itself is also a share and then the authorization is set by the own share