surprised with release 1.11

[parmentelat]

hi
this seems to be linked to #753 and/or #754 but as I don't know exactly which is which, I'm creating this new thread

I was taken by surprise after - not deliberately - deploying 1.11

my use case is this
. I have courses written as notebooks; because my students run this on their own computer I want the jupytext config to be embedded in the notebooks - so I don't know anything about this jupytext.toml that I've seen mentioned in the PRs
. I generally use md:myst, less often py:percent
. I find that saving the version numbers is only creating noise in git diffs, so I turn them off
. and I have a few extra settings of my own in the metadata; in the example below I have a nbhosting subsection in there
. my settings so far look like this

jupytext:
  cell_metadata_filter: all,-hidden,-heading_collapsed
  notebook_metadata_filter: all,-language_info,-toc,-jupytext.text_representation.jupytext_version,-jupytext.text_representation.format_version
  text_representation:
    extension: .md
    format_name: myst

and until 1.10.* eveything was fine;

however I just found that with 1.11 my notebooks would not save properly; saving a notebook without any change results in this diff

where you can see that my own metadata has gone, and the 2 versions I wanted to get rid of have resurrected

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can you please help me out here; I have tried to read about that but could not find with certainty how to handle this properly

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as a side note, I deliberately do not set formats: because I found that in some corner cases (when people try to 'download as...' iirc) that this setting was in the way

thanks !!

[mwouts]

Hi @parmentelat , thanks for reporting this.

I thought this use case was covered with tests but it was not, sorry.
I'll add more tests to make sure I catch the issue above and will soon release a fix.