AGM issue_change collector missing changes made on the backlog item related to the defect

[shayts7]

This the REST call AGM collector executes:
https://agilemanager-int.saas.hp.com/agm/rest/domains/saas_hp_25_ALMaaS_919190571/projects/Main/audits?query={parent-type[*defect*];parent-id[%3E0];id[%3E728398]}&page-size=100&start-index=1&order-by={time[desc]}

it retrieve only "defect entity" audit.
changes on the "release-backlog-item entity" won't be collected (for instance: "story points")