I tested the patch and it fixes the bug.

Johannes Schindelin [off-list ref] ezt írta (időpont:
2022. jún. 2., Cs, 15:28):

Hi Benedek,

On Tue, 31 May 2022, Benedek Kozma wrote:

quoted

What did you do before the bug happened? (Steps to reproduce your issue)
git status
cd submodule
git checkout origin/HEAD
cd ..
git status

What did you expect to happen? (Expected behavior)
the second git status showing that a submodule changed

What happened instead? (Actual behavior)
second git status also shows up to date

I believe that this should be fixed by one of the active FSMonitor patches
that are lined up for getting merged into Git:
https://lore.kernel.org/git/d0c8fecd1a0d622b1a6cce0aa79fdcdc2771db1d.1653601644.git.gitgitgadget@gmail.com/ (local)

Do you have a setup where you could apply this patch and build Git so that
you can verify whether this fixes the bug you reported?

Thanks,
Johannes