Deposit with 000 access rights

It seems that several deposits from HAL now are ingested with the root directory having a 000 mode, see:

• https://archive.softwareheritage.org/browse/swh:1:dir:ea46690af3d3e0713f3a394c9321a41c944eb979;origin=https://hal.archives-ouvertes.fr/hal-02960741;visit=swh:1:snp:dc1cd5ed063e95e00a17edd84c6dd3e367d82130;anchor=swh:1:rev:3200521bad4bdb723d8544f695749bef780b65a6

• https://archive.softwareheritage.org/swh:1:dir:2028b86e77e21a66f522a8d0e2bcf6c341f6a4b4;origin=https://hal.archives-ouvertes.fr/hal-02961482;visit=swh:1:snp:fcf14abf20c8f027f2e290c472ea9ca7710b4dee;anchor=swh:1:rev:9235b295296670186eeace394da3cbd1abb1f53b

We need to understand where this comes from: the original tarballs, or a glitch in the loader?

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Migrated from T2677 (view on Phabricator)