When configuring JGroups on the Red Hat Single Sign-On (RH SSO) 7.5.0 GA container image, a 'sed' error message appears and the pod crashes

Issue

We are facing a sed problem when we scale up the pod with sso75-openshift-rhel8:7.5for the first time:

INFO Configuring JGroups discovery protocol to dns.DNS_PING
INFO Using PicketBox SSL configuration.
INFO Configuring JGroups cluster traffic encryption protocol to SYM_ENCRYPT.
sed: -e expression #1, char 40: unterminated `s' command

When leaving both the JGROUPS_ENCRYPT_NAME and JGROUPS_ENCRYPT_PASSWORD environment variables blank, the pod starts normally.

This issue didn't happen on RH-SSO 7.4.