Duplicate import entries for code actions

[greg0ire]

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When asking the lsp for code actions, I often get duplicate (or more) lines, like in the screenshot below (Neovim):

I reproduced it with VS Code as well.

How to reproduce

1. Clone https://github.com/fwcd/kotlin-quick-start
2. Open https://github.com/fwcd/kotlin-quick-start/blob/main/src/test/kotlin/quick/start/AppTest.kt
3. Remove the import on line 7
4. Ask for code actions