disabling encryption is not possible after changing key storage root

[kiranparajuli589]

Steps to reproduce

1. setup oc-10 /core
2. encryption app /core/apps-external/encryption
3. make directory for key storage change mkdir /core/data/oc-keys && sudo chown -R www-data /core/data
4. enable encryption sudo -u www-data /core/occ encryption:enable
5. set masterkey type sudo -u www-data /core/occ encryption:select-encryption-type masterkey --yes
6. encrypt all sudo -u www-data /core/occ encryption:encrypt-all
7. change key root storage sudo -u www-data /core/occ encryption:change-key-storage-root oc-keys
8. decrypt all sudo -u www-data /core/occ encryption:decrypt-all
9. disable encryption sudo -u www-data /core/occ encryption:disable

Expected Behaviour

• encryption should be disabled

Actual Behaviour

• encryption disable fails with message: The system still have encrypted files. Please decrypt them all before disabling encryption.

Configurations

• core: git-latest
• encryption: git-latest
• php: 7.4.3