In cases when a word (as defined by the ICU break iterator) overlaps a style boundary, the returned wordStart can be extend before the range currently being measured for layout. When we try to hyphenate the resulting substrings, we get a negative range, which crashes. This patch disables hyphenation in this case. Bug: 27237112 Change-Id: I76d04b39dd3b4d6d267aaaf4bebc9ab361891646