Fix for the case of failed LAM-AREF ligature.
Fix for the case of failed LAM-AREF ligature.

xmirror/m17n-db,sanskrit-coders/m17n-db,sanskrit-coders/m17n-db,xmirror/m17n-db,xmirror/m17n-db,xmirror/m17n-db,sanskrit-coders/m17n-db