Control characters appear in shell prompt line when new zellij session is opened

Issue description

Sometimes, when I open a new zellij session, I see my shell prompt line contains some kind of control characters: 6;25;12t. This happens maybe 1/5 times I start zellij, not every time.

Minimal reproduction

Loop this until you see garbage on the prompt line:

ssh -t someuser@somehost zellij attach -c

This is real shell input, not a rendering glitch:

$ ssh -t someuser@somehost zellij attach -c

someuser@somehost ~> 6;25;12t # hit enter
fish: Unknown command: 6
fish: Unknown command: 25
fish:
6;25;12t
  ^^
fish: Unknown command: 12t
fish:
6;25;12t
     ^~^

Other relevant information

$ zellij --version
zellij 0.45.0

$ fish --version
fish, version 4.7.1