Hello,

today I've upgraded uv from 0.5.20 to 0.5.21 (my OS is Ubuntu 24.04) and I've encountered a possible bug. I have a project with dynamic versioning setup in pyproject.toml:

[project]
dynamic = ["version"]
...
[tool.hatch.version]
path = "[path]/__about__.py"
...

I run uv lock which added new line version = "0.2.0" to uv.lock (correctly read from __about__.py):

...
[[package]]
name = [the name of my library]
version = "0.2.0"
...

Next, I run uv lock --locked which I would expect to pass (I've just run uv lock), however, I get:

error: The lockfile at `uv.lock` needs to be updated, but `--locked` was provided. To update the lockfile, run `uv lock`.

So I run uv lock again, but it doesn't change anything anymore and uv lock --locked keeps failing.

Could you please advice me what I'm doing wrong? Or is this a bug? I think uv lock should not include the version in uv.lock anymore since 0.5.21, as it's dynamically set, but it seems it does so anyway?