I've used the abapGit-Plugins to export a SAP Gateway Builder Project (Transaction SEGW) to a Git Repository from a NetWeaver 7.40 system. When importing in a NetWeaver 7.52 system a dump was created with DBSQL_DUPLICATE_KEY_ERROR when trying to insert in table /IWBEP/I_SBD_MAP. I've checked the content of lt_imported_table_content in method import_object of lcl_tlogo_bridge and found that the line for table /IWBEP/I_SBD_MAP was initial. So it seems that the assignment that is checked to contain lines is from the last loop.