format_doc_comments causes adjacent comments to be made multiline

[DianaNites]

I have format_doc_comments = true in my .rustfmt.toml, and all of a sudden my adjacent comments are being formatted in C Style multiline instead of left alone. Not doc comments.

For example, this

// pub nice: String,
// pub nice_adjacent: String,

will be turned into this

/* pub nice: String,
* pub nice_adjacent: String, */

These are also unaffected by the normalize_comments option

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Version details:

rustfmt 1.0.1-nightly (be13559 2018-12-10), via rustup component.
cargo 1.33.0-nightly (2cf1f5dda 2018-12-11)
rustc 1.33.0-nightly (2d3e909 2018-12-22)

[scampi]

If these comments are after a field inside a struct, that is on purpose. See #3209 and #93 for more details.

[DianaNites]

Well, thats disappointing.