Fix sharePath for virtual paths using suffix vfs mode

[claucambra]

Fixes #6787

[claucambra]

/backport to stable-3.13

[mgallien]

/backport to stable-3.13

[backportbot]

The backport to stable-3.13 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable-3.13
git pull origin stable-3.13

# Create the new backport branch
git checkout -b backport/6802/stable-3.13

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick 531e01d5

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/6802/stable-3.13

Error: Failed to create pull request: Validation Failed: {"resource":"PullRequest","code":"custom","message":"A pull request already exists for nextcloud:backport/6802/stable-3.13."}

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[nextcloud-desktop-bot]

AppImage file: nextcloud-PR-6802-531e01d574fdb5581c3c440b28b58f49eedf4b5b-x86_64.AppImage

To test this change/fix you can simply download above AppImage file and test it.

Please make sure to quit your existing Nextcloud app and backup your data.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud