With #7643 , joint userdata must have a header, a plain text cannot be used as one of the joint userdata any more.
This breaks backward compatibility while in elder versions userdata can be any string.

• template has linked userdata
• vm has manual entry or appended userdata.

ISSUE TYPE

• Bug Report

COMPONENT NAME

Userdata 

CLOUDSTACK VERSION

4.19

CONFIGURATION

OS / ENVIRONMENT

SUMMARY

STEPS TO REPRODUCE

EXPECTED RESULTS

ACTUAL RESULTS