They should not be merged with the original publication (?). It is up to the EndNote user how he/she will mark up the erroneous and the corrected publication
even if it is a republication with corrigenda, the original publication may not be merged (?).
variant corrigenda should be merged:
deduplication program should mask the differences introduced by the producers of the bibliographic databases. The addition in braces at the end of "Erratum to Low Alpha-Fetoprotein Levels Are Associated with Improved Survival in Hepatocellular Carcinoma Patients with Portal Vein Thrombosis (Dig Dis Sci, DOI 10.1007/s10620-015-3922-3)" may block the merging with an erratum from another bibliographic database
How should corrigenda/ errata be handled?
TODO: more tests