fix: put continuous insertions with the same line in order of applying

[kyoh86]

fix: #281

[mattn]

Thank you. Does this problem only occur with neovim?

[kyoh86]

I'll check it in vim.

[kyoh86]

@mattn
I confirmed that the issue #281 is a problem that occurs only in Neovim.
However, Neovim contributors have stated that this is the result of a fix in accordance with the LSP specification, and as a result, the fix in efm-langserver is reasonable.

When we merge this pull request, I seem to have a problem like #281 with vim+vim-lsp this time.
Perhaps the vim-lsp implementation needs to be modified as well...

[kyoh86]

@mattn
I had neglected to mention that this change would affect other clients as well.
At a minimum I would check for the following clients

• vim-lsp
• coc.nvim
• Eglot
• Helix
• VSCode

Since it will take time to verify all environments, we will withdraw the request and ask for another review after the investigation.
Thank you very much.