Please add a note in RHDM/RHPAM 7.3.0 Release Notes about the change regarding "packages" in kmodule.xml which is introduced since RHDM/RHPAM 7.3.0.
Please include this KCS article link which explains the details.
https://access.redhat.com/solutions/4014541
It would be in "Known issues" chapter or in a special chapter like "Supportability/Compatibility Notes" (I suggested in BXMSDOC-2651 before).