F-Droid privileged extension error

[corna]

The F-Droid privileged extension is correctly installed but if I try to enable it in the F-Droid's menu -> Other -> Privileged Extension the following error appears:

F-Droid Privileged Extension is not available

The privileged permissions have not been granted to the extension!
Please create a bug report!

I've looked at the F-Droid's code and I found that this error is related to this block of code in Privileged-Extension/src/main/java/org/fdroid/fdroid/privileged/PrivilegedService.java

private boolean hasPrivilegedPermissionsImpl() {
        boolean hasInstallPermission =
                getPackageManager().checkPermission(Manifest.permission.INSTALL_PACKAGES, getPackageName())
                        == PackageManager.PERMISSION_GRANTED;
        boolean hasDeletePermission =
                getPackageManager().checkPermission(Manifest.permission.DELETE_PACKAGES, getPackageName())
                        == PackageManager.PERMISSION_GRANTED;

        return hasInstallPermission && hasDeletePermission;
    }

Therefore I suppose that the extension does not have the INSTALL_PACKAGES and DELETE_PACKAGES permissions. Can you please grant these permissions to the F-Droid privileged extension?
Thanks