fonttools/Tests/feaLib/data/bug514.fea

# The many chain targets for this feature should get combined into
# two separate SinglePos lookups: {A:-40, B:-40, C:-40} and {A:-111}.
# https://github.com/fonttools/fonttools/issues/514
#
# makeotf produces {A:-40, B:-40, C:-40} and {A:-111, B:-40} which
# is redundant. https://github.com/adobe-type-tools/afdko/issues/169
feature test {
    pos X [A - B]' -40 B' -40 A' -40 Y;
    pos X A' -111 Y;
    pos X B' -40 A' -111 [A - C]' -40 Y;
} test;