am c7c09960: Merge "Fix bug #5870701 Thai text can be clipped when there are more glyphs generated than the initial number of code points"

* commit 'c7c09960ff9cc71d4f27f57b456986f4b634310d':
  Fix bug #5870701 Thai text can be clipped when there are more glyphs generated than the initial number of code points