Potential performance regression with "BUG: DateTimeIndex.is_year_start unexpected behavior when constructed…"

[DeaMariaLeon]

PR #57494

@mattheeter

{
"tslibs.fields.TimeGetDateField.time_get_date_field (Python) with field='s', size=1000000": "http://57.128.112.95:5000/compare/benchmarks/066639a2084f75ab8000e6252b6a277a...066647f1be1a7f878000e6f25fe386d1",
"tslibs.fields.TimeGetDateField.time_get_date_field (Python) with field='M', size=1000000": "http://57.128.112.95:5000/compare/benchmarks/066639a205f975a580001752d162969b...066647f1bba577c78000f3cc52b36eca",
"tslibs.fields.TimeGetDateField.time_get_date_field (Python) with field='doy', size=1000000": "http://57.128.112.95:5000/compare/benchmarks/066639a20a157acf800052022a1021a8...066647f1bfb77cbb8000eeb799121073",
"tslibs.fields.TimeGetDateField.time_get_date_field (Python) with field='doy', size=10000": "http://57.128.112.95:5000/compare/benchmarks/066639a201ec71228000b75645555199...066647f1b762714e8000123e3c46ad25"
}

[Aloqeely]

Thanks for the report! That PR looks good to me, and this change is too small to worry about so going to close as expected increase from the bug fix.