The recently introduced speedup of `git checkout` sadly introduced a
regression: after writing a file, the cached stat data is obviously
incorrect, yet we still used it!
This patch simply reverts the original speedup (as opposed to try to
hotfix it as https://github.com/git-for-windows/git/pull/1443 tries to
do), and marks it as a fixup commit so that the next merging-rebase will
drop the patch.
We will most likely want to speed up this code path, though, but may
find a better way, e.g. by invalidating the cached data cleverly. (This
will be a *little* tricky, though, as readdir() uses the data, and we
must ensure that we do not pull it under readdir()'s rag when
invalidating it, and we also must avoid re-caching for every written
file, as that would be *even* slower than fscache=false.)
This fixes https://github.com/git-for-windows/git/issues/1438 and
https://github.com/git-for-windows/git/issues/1442
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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