git bisect tells us parent of culprit?

[tdhock]

Rdatatable/data.table#6284 (comment)
First commit below is probably the real culprit, since startsWith was removed.
But R CMD check says it is OK, why?

Bisecting: 4 revisions left to test after this (roughly 2 steps)
[3ca83738d70d5597d9e168077f3768e32569c790] Bump R dependency to R>=3.3.0 (#6232)
running  '/home/th798/R/R-devel/bin/Rscript' '/home/th798/genomic-ml/data.table-revdeps/install_dt_then_check_dep.R' 'examples' 'OK' '/tmp/th798/12011375/RtmpbkvCSv/downloaded_packages/scoringutils_1.2.2.tar.gz' '1.15.4'
...
   checking    msg
     <char> <char>
1: examples     OK
Bisecting: 2 revisions left to test after this (roughly 1 step)
[5a091b1286110c4169d20ae2a8e59152b84d38a7] Set occasional suite to run again tomorrow (#6241)
running  '/home/th798/R/R-devel/bin/Rscript' '/home/th798/genomic-ml/data.table-revdeps/install_dt_then_check_dep.R' 'examples' 'OK' '/tmp/th798/12011375/RtmpbkvCSv/downloaded_packages/scoringutils_1.2.2.tar.gz' '1.15.4'
...
   checking    msg
     <char> <char>
1: examples  ERROR
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[40758c9250b66bb5156418c0c47db08c98d4adce] workaround for non-ascii symbol in by (#4711)
running  '/home/th798/R/R-devel/bin/Rscript' '/home/th798/genomic-ml/data.table-revdeps/install_dt_then_check_dep.R' 'examples' 'OK' '/tmp/th798/12011375/RtmpbkvCSv/downloaded_packages/scoringutils_1.2.2.tar.gz' '1.15.4'
...
   checking    msg
     <char> <char>
1: examples  ERROR
40758c9250b66bb5156418c0c47db08c98d4adce is the first new commit
commit 40758c9250b66bb5156418c0c47db08c98d4adce
Author: Michael Chirico <[email protected]>
Date:   Thu Jul 11 07:22:54 2024 -0700

    workaround for non-ascii symbol in by (#4711)