We have one userparam for discover cifs mountpoint that returns a json but on discovery rules says "value should be a json object"

Steps to reproduce:

• Create /etc/zabbix/zabbix_agentd.conf.d/samba.userparams.conf

UserParameter=discoverSMB,echo -n '{"data":['; for i in $(grep -v "^#" /etc/fstab |grep -i -e cifs -e smbfs  | awk '{print $2}'); do echo -n '{"{#MOUNTPOINT}":"'$i'"},';done | sed -e 's/,$//' ; echo -n ']}'

• Go to webinterface and create a discovery rule on empty template:

Name: CIFSmountpoints
Type: Zabbix agent
Key: discoverSMB

• Go to server and check what you get:

root@zabbix-server:/var/lib/zabbix# zabbix_get -s x.x.x.x -k discoverSMB
{"data":[{"{#MOUNTPOINT}":"/mnt/winfs/directorioBackup"},{"{#MOUNTPOINT}":"/mnt/winfs/directorioBBDD"}]}

• Validate json on https://jsonlint.com/
• Apply the template to a host and check that you get the alert "Value should be a JSON object"