Rendering SLS 'base:XXXXX' failed: found unexpected ':'

Description of Issue/Question

When running “salt-call state.apply” and having a grains file “:” sign within grains options it fails with this message

[CRITICAL] Rendering SLS 'base:atlassian/jira' failed: found unexpected ':'
local:
    Data failed to compile:
----------
    Rendering SLS 'base:atlassian/jira' failed: found unexpected ':'

The grains file looks like this:

jira_java_opts:
- Dcom.sun.management.jmxremote
- Dcom.sun.management.jmxremote.port=9010
- Dcom.sun.management.jmxremote.rmi.port=9010
- Dcom.sun.management.jmxremote.local.only=true
- Dcom.sun.management.jmxremote.ssl=false
- Dcom.sun.management.jmxremote.authenticate=false
- Duser.timezone=Europe/Stockholm
- XX:+PrintGCDetails
- XX:+PrintGCDateStamps
- XX:+PrintGCTimeStamps
- XX:+PrintGCCause
- Xloggc:/var/atlassian/application-data/jira/log/atlassian-jira-gc-%t.log
- XX:+UseGCLogFileRotation
- XX:NumberOfGCLogFiles=5
- XX:GCLogFileSize=20M
- XX:ReservedCodeCacheSize=384m
- XX:+UseG1GC
- Datlassian.mail.senddisabled=true
- Datlassian.mail.fetchdisabled=true
- Datlassian.mail.popdisabled=true
jira_version: 8.1.0
jira_xms: 3g
jira_xmx: 3g
roles: jira

If I remove the : sign from all the options above it works ok OR if I downgrade to version 2015.8.8+ds-1 it also works ok (im now running 2019.2.0+ds-1)

What todo ?

Setup

(Please provide relevant configs and/or SLS files (Be sure to remove sensitive info).)

Steps to Reproduce Issue

(Include debug logs if possible and relevant.)

Versions Report

(Provided by running salt --versions-report. Please also mention any differences in master/minion versions.)