Nemo does not update empty folder status after moving a file

[kimimaru4000]

 * Nemo version 4.6.5
 * Is issue with desktop or windowed nemo?
 * Distribution - Linux Mint 20 Ulyana
 * NVIDIA GeForce RTX 2060 | Driver: 450.80.02
 * 64 bit

Issue
If you have an empty folder in List view and move a file into it, Nemo still indicates that the folder is empty. The arrow to the left showing the folder's contents will not appear until you re-open or refresh the directory containing the now non-empty folder.

Steps to reproduce

1. Have Nemo open in List view.
2. Navigate to a directory with an empty folder or create an empty folder.
3. Move a file into the empty folder. This can be a newly created file.
4. The folder still shows that it's empty.

Expected behaviour
After moving the file inside the folder, the folder updates to show that there is now a file inside it.

[Jeremy7701]

The demonstration is in list view; not icon view (as specified in the problem description).
I tried to reproduce the problem in both icon and list view but couldn't reproduce the problem.

[kimimaru4000]

The problem actually was in list view; sorry about that! Maybe this is related to a certain setting. Is there a way to export Nemo settings?

[fredcw]

Yes, I noticed this as well. In list view the folder should have a little arrow next to it that you can use to expand the contents if the folder is not empty. When you drag something into an empty folder, no arrow appears. But it will appear if you reload the view (Ctrl-R). It's hardly the worst bug ever but probably worth pointing it out nonetheless.

[gkatev]

I've also come here to report this problem! I see the "need info" label, can I help provide information?
The video accurately describes my experience.

• Create empty folder
• Drag'n'drop file to folder
• The item count updates correctly like on the video
• But, the arrow is not shown next to the folder that is now non-empty, forcing a folder refresh, which loses the tree-ed view state.

All this in list view.

[kimimaru4000]

@icarter09 What extra information is needed to proceed with this issue?

[mtwebster]

No extra info is needed. We're aware of this issue, but it's not trivial to fix. I'm considering reverting back to always showing the arrow, whether empty or not.

[kimimaru4000]

Thanks for the update @mtwebster. Do you mind sharing some technical information on why it's not trivial? To my understanding, when a file is moved into a folder successfully, the folder can never be empty, and I'm wondering what could be the underlying problem displaying an arrow in this case.

[gaellafond]

This bug is very irritating when manipulating large projects. If I have a set of folder opened multiple layers deep, when I refresh, it collapses the whole tree structure and I have to reopen all the folders, remembering which ones were opened. Always showing the arrow would be a good solution for me.