Adjacent replaced multiline matches result in wrong line numbers

[meedstrom]

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• [X] I have a different issue.

What version of ripgrep are you using?

ripgrep 13.0.0 -SIMD -AVX (compiled) +SIMD +AVX (runtime)

How did you install ripgrep?

APT

What operating system are you using ripgrep on?

Kubuntu 23.10

Describe your bug.

This is similar to #2420, and I understand why that's WONTFIX. This is different though.

Using a multiline regexp, when the regexp matches strings that come immediately one after another, it bungles the line numbers of all of them. Easier to show you with a reproduction example:

What are the steps to reproduce the behavior?

Save a file test.txt containing:

:properties:
:id: fnord
:end:
:properties:
:id: boccob
:end:
:properties:
:id: d321fdddffff
:end:
:properties:
:id: clowns
:end:

Then run

rg -nU '^:properties:\n:id: (.*)\n:end:' -r '$1' test.txt

What is the actual behavior?

The result is

1:fnord
2:boccob
3:d321fdddffff
4:clowns

Only the first hit is correct.

You can see that the line numbers will be correctly reported if you modify the file to add a newline after each instance of ":end:".

What is the expected behavior?

Expected the result:

1:fnord
4:boccob
7:d321fdddffff
10:clowns