Memory leaks with Window Border feature enabled

[kotanys]

Describe the bug
When Windows Border feature of the extension enabled, and wl-copy or wl-paste is invoked, a memory leak occurs.

To Reproduce
Steps to reproduce the behavior:

1. Enable Window Border
2. Open a floating (!) terminal window and ensure you see the border around it
3. Open a RAM usage monitoring software of your choice
4. In the terminal, run echo test | wl-copy a couple of times (copies "test" to the system clipboard)
5. See the border flicker every time you run the command
6. See RAM usage go up without ever going down

Screenshots
On a clean Ubuntu 25.10 live ISO in a VM (Ubuntu's tiling assistant disabled):
https://github.com/user-attachments/assets/71e29263-0022-4bb0-8420-87cae82bda41

On my Fedora 43 (the issue is much, much worse here):
https://github.com/user-attachments/assets/60638ba1-f921-461a-b21d-15e1fdaf43c5

Information (please complete the following):

• Tiling Shell version: 17.3
• GNOME version: 49.4

Additional context

To really hammer the bug home, run while true; do echo test | wl-copy; done and be ready to hit Ctrl+C :)

I experience this issue while using Neovim with :set clipboard+=unnamedplus. This makes any act of copying and pasting interact directly with the clipboard via wl-copy. After a while of using Neovim like that the memory fills up and a shell restart is required.

[landonb]

I see the same issue on Debian 13, GNOME Shell 48.7, Tiling Shell v17.3:

• Memory leaks when I use wl-paste or paste multiple times in an app (e.g., paste inside an Alacritty terminal window, or paste to Neovide, or even Chrome).

• I only see the leak via total Memory Used or Free (e.g., via free, or System Monitor), but I don't see the memory leak in any specific process (i.e., not via ps, or htop).

• The memory is released when I quit the affected app (usually Neovide, but sometimes an Alacritty terminal window, or even Chrome).

• The memory leak does not happen if I disable Tiling Shell Window border.