According to the manuals page for ERM (https://koha-community.org/manual/24.11/en/html/erm.html#create-a-new-local-title-record), a local bibliographic record with basic fields taken from ERM resource information (publication_title, print_identifier, online_identifier, date_first_issue_online, date_last_issue_online, num_first_vol_online, num_last_vol_online, title_url, first_author, coverage_depth, notes, publisher_name) could be created. However, it seems that a bibliographic record created either from a KBart file line, or from an ERM resource info entered by hand contains only the title (cf. Koha::ERM::EHoldings::Title->store).
@Janusz I found the duplicate bug entry. It's "In Discussion" currently. *** This bug has been marked as a duplicate of bug 35095 ***