LSP textDocument/documentColor requests not being sent since v1.78

[bradlc]

Does this issue occur when all extensions are disabled?: Yes (all extensions other than the reproduction extension)

• VS Code Version: 1.78.2
• OS Version: macOS 12.5.1

Over at the Tailwind CSS IntelliSense repo we are seeing multiple reports of issues with colour decorators since the release of v1.78. Some are related to the new defaultColorDecorators setting which I think is a separate issue, but we are also seeing an issue where document colour requests are not being sent to the language server at all (defaultColorDecorators is false in this case).

I was able to create a small reproduction based on the LSP extension sample. Please see below.

Steps to Reproduce:

1. Clone https://github.com/bradlc/vscode-document-colors
2. Follow instructions from reproduction readme: https://github.com/bradlc/vscode-document-colors/blob/main/README.md

When the same project is opened in v1.76.2, the onDocumentColor count is logged repeatedly when editing the document.

[aeschli]

Thanks a lot for the great steps to reproduce. I pushed a fix for the issue.