I have removed this pattern and have run all the regression tests. The
result:
./regress.sh . owl.tst
4 unexpected FAIL: Correct '1 C12', got '1 B14'
80 unexpected PASS!
./regress.sh . neurogo.tst
13 unexpected FAIL: Correct '!P7', got 'P7'
./regress.sh . lazarus.tst
16 unexpected PASS!
./regress.sh . arend.tst
4 unexpected FAIL: Correct 'R14|S15|R17', got 'S16'
./regress.sh . nngs3.tst
390 unexpected PASS!
1000 unexpected PASS!
./regress.sh . nngs4.tst
470 unexpected PASS!
./regress.sh . arend2.tst
50 unexpected FAIL: Correct 'S14', got 'T13'