sigsev in processing initialization message.

[SpehleonLP]

I was trying to make an Lsp for my little language and testing it with vim-lsp. and i got a sigsev when vim passes it's initialization message. I made a minimal example where i just include vim's first message in the source and dispatch it manually, idk how legit that is but it breaks in an identical way.

LspTest.zip

built on a current linux mint, using G++12, c++17

[Julpikar]

I feel suspicious about this repo. There are use after free errors and inconsistencies in the use of smart pointers.