"Copy" in code blocks inject double newlines about mkdocs-material

[squidfunk]

Fixed in 937d7cc. I was able to reproduce it and found out that it's related to 4eb1a43, which fixes line highlights on mobile, but introduced the side effect of empty lines when copying.

[squidfunk]

I'm in the process of creating a release for this. "9.5.18 regression" means the bug was introduced in 9.5.18 and it worked before, which was confirmed by the OP, saying that downgrading to 9.5.17 fixes the issue.

[jippi]

Thank you @squidfunk ❤️

[facelessuser]

This seems to have been introduced in one of the recent Material releases. Locally, I had mkdocs-material-9.5.6, but after updating to mkdocs-material-9.5.21, I was able to reproduce the issue.

I should note that I could only reproduce with the line_spans: __span option. I suspect that the copy logic gets tripped up by line spans and injects extra new lines. That is my guess at least.

[squidfunk]

Thanks for reporting. Please provide a minimal reproduction, as requested by our bug reporting guidelines.

[jippi]

Bisecting releases, it works as expected in 9.5.17 and fails in 9.5.18 and above; and removing line_spans: __span makes it work across all versions

[luonghuyquang]

You did 'Fixed empty lines when copying (9.5.18 regression)'.
Do we need to install specific version 9.5.18?
An upgrade would install 9.5.21 again.

[squidfunk]

Released as part of 9.5.22.