There is an unneeded warning similar to this
2019-02-15 15:34:43 0 [Warning] InnoDB: Tablespace 657 was not found at ./test/#sql-6009_f.ibd when restoring a (partial?) backup. All redo log for this file will be ignored!
Since 10.4 does not copy temp. files anymore, the warning only adds confusion, and does not
need to be there