Work offline setting gets lost with child databases

FileSelectActivity.OnResume() calls App.Kp2a.OfflineMode = false; and never resets this. This could explain the behavior described by a user (mail from 2021-10-07):

I have several databases that open together via AutoOpen entries, and this has been working well for several years.
These files are stored on a sftp server, and this also has been working well for several years.

this has happened for a while now, but has not always been a problem. I have recent cache copies and I open those easily. there is a checkbox, something like "local files only" on the master password prompt screen, and I have that checked so program doesn't wait and wait looking for the remote files.

I do anything that causes a database save, but keepass forgets that I told it not to update remote files, and starts looking for the sftp server. I curse a bit, click "Work on internal cache only" but keepass will forget this later and try again to find sftp server. I can interrupt this cycle only by toggling Airplane Mode, then keepass will immediately give up on the sftp server, and I will start this cycle again.

Start at FileSelectActivity.OnResume(), focusing on the App.Kp2a.OfflineMode assignment and the flow that opens child databases. Reproduce the reported AutoOpen and cached-database scenario with Work on internal cache only enabled; done means that setting remains effective after a save or child-database operation without retrying the SFTP connection.