I configure zabbix to receive snmptraps from network devices. In the item key field I use double quotes in regexp and escape it with backslash.
But the escaped double quotes and brackets will be removed too by autodiscovery?!

The item key field:

snmptrap["(IF-MIB::linkDown|IF-MIB::linkUp)(.|[[:space:]])*(\"{#IFDESCR}\")"]

And the generated item will be the following:

snmptrap["(IF-MIB::linkDown|IF-MIB::linkUp)(.|[[:space:]])*ge-0/0/20"]

The problem is, the generated item matches multiple interfaces eg. ge-0/0/20 and ge-0/0/2 too.