Shows last modification date of containing files for folder

[lifesights]

Bug Description
Folders in Backblaze buckets are really a bunch of files sharing the same parent path. Cyberduck does a great job representing folder hierarchies as "folders" in a file tree.

The bug is that Cyberduck does not show folder create/modified dates, so users cannot sort their root bucket/folder content by date. Instead it just shows "Unknown"

To Reproduce
Connect Cyberduck to any S3 bucket that has folders with files in them.

Expected behavior
The "Modified" column should populate with a date the folder was create/modified. Recognizing that "folders" don't actually exist and Cyberduck is creating the hierarchy based on file paths, the date should show as the date the last file was modified within that path/folder.

Screenshots

**Desktop **

• OS: Windows 10
• Cyberduck Version 8.9.0
• Backblaze B2

[dkocher]

This applies to other protocols with no notion of directories, most notably S3.