Steps to reproduce:

1. created in Interface SNMP Graph prototypes.
2. specified a name - "Int {#IFNAME} ({# IFALIAS}) {{HOST.HOST}: net.if.status [ifOperStatus. {# SNMPINDEX}]. last ()}"

Result:
on the page with the graffiti the name is ok. See screenshot 1 
but not everything is so good in the graphical filter window. See screenshot 2