So the scenario is: device A shares a folder with ID “myfolder” with device B.
device C shares a folder with ID “myfolder” with device D.
Later, device A and device C add each other to share a totally different folder.
At the point where A and C now “trust” each other - would “myfolder” get implicitly synced?
A little further on, device C’s user clicks “share with…” on their version of “myfolder” with device A.
Will device A suddenly be sharing their “myfolder”, or would they need to accept the folder from device C before this happened?
In short: is adding a device implicitly trusting any folder IDs it claims to have data for? Or is the “accept folder” step a secondary authorization (i.e. yes, I agree that for this folder ID name we’ll exchange data).
Basically: could a device “act hostile” and hunt around setting up folder IDs to try and find other matching IDs?