gofile: fix Move a file

For some reason the parent ID got out of date in the Object (exact
reason not known - but the fact that this was OK before suggests a
change in the provider).

However we know the parent ID as it is in the directory cache, so use
that instead.

Author: ncw

backend/gofile/gofile.go

@@ -1105,14 +1105,20 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		return nil, fs.ErrorCantMove
 	}
 
+	// Find existing object
+	srcLeaf, srcDirectoryID, err := srcObj.fs.dirCache.FindPath(ctx, srcObj.remote, false)
+	if err != nil {
+		return nil, err
+	}
+
 	// Create temporary object
 	dstObj, dstLeaf, dstDirectoryID, err := f.createObject(ctx, remote, srcObj.modTime, srcObj.size)
 	if err != nil {
 		return nil, err
 	}
 
 	// Do the move
-	info, err := f.moveTo(ctx, srcObj.id, path.Base(srcObj.remote), dstLeaf, srcObj.dirID, dstDirectoryID)
+	info, err := f.moveTo(ctx, srcObj.id, srcLeaf, dstLeaf, srcDirectoryID, dstDirectoryID)
 	if err != nil {
 		return nil, err
 	}