Zellij prevents neovim from detecting OSC52 clipboard support

[kika]

Zellij prevents neovim 0.10.* from detecting OSC52 clipboard support (which zellij supports).

Minimal reproduction

kitty (0.34.0) terminal on MacOS runs an ssh session (using kitten ssh for proper terminfo) to an ubuntu machine:

1. Without zellij on a remote machine - no problem, neovim (nvim --clean) detects OSC52 support in kitty and installs fallback OSC52 clipboard handler
2. In the zellij pane neovim doesn't install the OSC52 fallback clipboard handler.

I've sprinkled $VIMRUNTIME/plugins/osc52.lua with a bunch of vim.print()s and discovered that this code works differently in these two situations:

require('vim.termcap').query('Ms', function(cap, found, seq)
  if not found then
    vim.print('No term cap, return')
    return
  end
--- ....
end)

Without zellij the Ms capability is found, with it - not. The infocmp result in both sessions is exactly the same and kitty is recognized as a terminal emulator.

[loralb]

Having a similar problem, where the paste keybind of my terminal emulator (tried with both ghostty and konsole) does not work when inside zellij. This happens while working on my local machine and also when working on a remote machine, connected through ssh.

zellij --version: zellij 0.41.2

Basically I can't paste text from my clipboard when inside a zellij session, no matter what I am running (text editor, shell, whatever)