Nextcloud version (eg, 12.0.2) : Nextcloud 13 (I am waiting for Zimbra Drive support for Nextcloud 14/15)
Operating system and version (eg, Ubuntu 17.04) : Ubuntu 16.04 LTS
Apache or nginx version (eg, Apache 2.4.25) : Apache 2.4.18
PHP version (eg, 7.1) : 7.1
The current Share Permissions do not support this kind of mechanism.
They are unable to move the file without giving them the power to delete the file.