Worked on improving Language Server Protocol (LSP) reliability in the neovim/neovim repository by addressing a bug affecting multi-client group editing scenarios. Focused on ensuring that the didOpen notification is propagated to all clients within a group upon file save, replacing the previous behavior that targeted only a single client. Refactored the multi-client and group handling logic using Lua scripting, introducing a loop to iterate over every client in a group. This approach enhanced the consistency of LSP state across group sessions and reduced latency during save operations. Applied skills in functional testing, LSP development, and Lua to deliver this fix.