* bug#50762: diff-update-on-the-fly doesn't update hunk headers while regexp-replacing lines
@ 2021-09-23 15:56 Konstantin Kharlamov
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From: Konstantin Kharlamov @ 2021-09-23 15:56 UTC (permalink / raw)
To: 50762
As title says. I think due to this bug it would make sense to have diff-update-on-the-fly set to nil by default.
# Steps to reproduce
1. In Emacs repo, `git checkout 72f8a9dd08132119a` (arbitrary commit for the sake of testcase)
2. Create a patch from Emacs repo with `git format-patch -1 --stdout > /tmp/1.patch`, open it.
3. Note that 1st hunk has value `-2883,10 +2883,13`
4. Use regexp-replace aka `C-M-%` with `(.*^J\+.* → line1` (please replace ^J here with C-q C-j)
5. When asked for matches, press `!`, so all lines are replaced
6. Look at the first hunk again
## Expected
It changes its value to recalculation that should be happening
## Actual
It still has the older value, no recalculation has happened.
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2021-09-23 15:56 bug#50762: diff-update-on-the-fly doesn't update hunk headers while regexp-replacing lines Konstantin Kharlamov
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