Inherit layer argument in _highly_variable_genes_single_batch when using sc.pp.highly_variable_genes

[Ngort]

Quite a simple addition meant to fix a bug when one works with specific layers.

[codecov]

Codecov Report

Merging #2183 (1cba9ed) into master (805bd63) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2183   +/-   ##
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  Coverage   71.38%   71.38%           
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  Files          92       92           
  Lines       11283    11283           
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  Hits         8054     8054           
  Misses       3229     3229           

Impacted Files	Coverage Δ
scanpy/preprocessing/_highly_variable_genes.py	94.24% <ø> (ø)

[Zethson]

Could you please run black?

black....................................................................Failed
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reformatted scanpy/preprocessing/_highly_variable_genes.py

All done! ✨ 🍰 ✨
1 file reformatted, 152 files left unchanged.

[ivirshup]

That definitely looks wrong on our end....

Can you add a test for this?

[Zethson]

@Ngort we'd be happy to get this PR in if you address the comments above.

[DriesSchaumont]

@Ngort we'd be happy to get this PR in if you address the comments above.

@Zethson I think this was fixed in #2302

[Zethson]

@DriesSchaumont Thanks!

[flying-sheep]

We should make sure to get fixes like this in by fixing style issues with PRs ourselves.