[server] portable dump format supports now ZIP64 extensions by default (closes #1912535) ZIP files can use the ZIP64 extensions when the zipfile is larger than 2 GB. zipfile will raise an exception when the ZIP file would require ZIP64 extensions. Note: ZIP64 extensions are disabled by default in stdlib because the default zip and unzip commands on Unix (the InfoZIP utilities) don’t support these extensions.

sync_schema_props_perms('cw_source', syncprops=False)
add_attribute('CWSource', 'synchronizing')
if schema['BigInt'].eid is None:
    add_entity_type('BigInt')