Backup import script: "The field 'w' is not valid for an index specification."

[frdmn]

2020-10-30T08:58:35.516+0000	restoring indexes for collection rocketchat.rocketchat_apps from metadata
2020-10-30T08:58:35.572+0000	finished restoring rocketchat.rocketchat_export_operations (4 documents)
2020-10-30T08:58:35.574+0000	reading metadata for events.reminders from archive '/dump/202010300000.json'
2020-10-30T08:58:35.609+0000	restoring events.reminders from archive '/dump/202010300000.json'
2020-10-30T08:58:35.614+0000	finished restoring rocketchat.rocketchat_apps (3 documents)
2020-10-30T08:58:35.620+0000	reading metadata for rocketchat.rocketchat_livechat_department from archive '/dump/202010300000.json'
2020-10-30T08:58:35.623+0000	no indexes to restore
2020-10-30T08:58:35.624+0000	finished restoring events.reminders (2 documents)
2020-10-30T08:58:35.624+0000	restoring indexes for collection rocketchat.assets.chunks from metadata
2020-10-30T08:58:35.626+0000	Failed: rocketchat.assets.chunks: error creating indexes for rocketchat.assets.chunks: createIndex error: The field 'w' is not valid for an index specification. Specification: { name: "files_id_1_n_1", ns: "rocketchat.assets.chunks", w: 1, key: { files_id: 1, n: 1 } }

[frdmn]

Do we actually need to import the indexes? 🤔

[frdmn]

RocketChat/Rocket.Chat#13300 (comment)