Incorrect result display with empty line and colors

[roblourens]

microsoft/vscode#31252

When I search ^$, I get, for each file, a correctly formatted result line for the first empty line in the file, but the other result lines have extra color escape codes for a 'match' before the line number.

The command I'm using to demonstrate is rg --color ansi --colors 'path:none' --colors 'line:none' --colors 'match:fg:red' --colors 'match:style:nobold' --heading --line-number '^$' > out.txt - the extra --colors flags are not necessary to the repro, they just make it a little easier to see the issue. And this might be a good time to ask whether you've made any progress towards #244 😁

Result

^[[mtest.txt^[[m
^[[m2^[[m:^[[m^[[31m^[[m
^[[m^[[31m^[[m^[[m4^[[m:^[[m^[[31m^[[m
^[[m^[[31m^[[m^[[m6^[[m:^[[m^[[31m^[[m
^[[m^[[31m^[[m^[[m8^[[m:^[[m^[[31m^[[m

You can see the first line starts with the 2: surrounded by escapes. But other lines first have escape codes for a match, then 4:, then another set of codes for a match.

Expected:
I search another file for ^foo$.

^[[mtest2.txt^[[m
^[[m2^[[m:^[[m^[[31mfoo^[[m
^[[m4^[[m:^[[m^[[31mfoo^[[m
^[[m6^[[m:^[[m^[[31mfoo^[[m
^[[m8^[[m:^[[m^[[31mfoo^[[m