fixed bug 03505: "INSERTANS not working when referring to Array (flexible labels) questions".
Dev: Fix provided by Thibault. Problem was caused by HTML within the labels.

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/source/limesurvey@7348 b72ed6b6-b9f8-46b5-92b4-906544132732