Commit 1c50a88623a881a9e2b2b0f1f6a783962626f03a

Behdad Esfahbod 2018-02-18T15:57:09

Readjust mark attachment heuristic a bit more Previously adjusted logic could fail if nothing around was ligated, and something moved. This should take care of that. CC https://github.com/harfbuzz/harfbuzz/issues/740