mrdoob/three.js — pull request #2059 by pjoe (2012-06-13 14:38:36+00:00)
Title: Fix problem when less than supported number of morph targets

Was pulling my hair to get morph targets working (webgl renderer), until I found this bug when you are using less than the max supported number of morph targets which would leave a -1 in the influences array, messing things up.