[gnome-photos/sam/tracker3] Fix up again

[Sam Thursfield <sthursfield src gnome org>]

commit 622ad4924660d47853c7fae07aee41a99536a31c
Author: Sam Thursfield <sam afuera me uk>
Date:   Sat Aug 15 18:05:26 2020 +0200

    Fix up again

 src/queries/collections.sparql.template | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/queries/collections.sparql.template b/src/queries/collections.sparql.template
index fca26850..2841b16f 100644
--- a/src/queries/collections.sparql.template
+++ b/src/queries/collections.sparql.template
@@ -4,7 +4,7 @@ SELECT {{inner_projection}}
         SELECT ?urn COUNT(?item) AS ?count
         {
             {{values}}
-            VALUES (?file ?filename) { (0, 0) }
+            VALUES (?file ?filename) { ("" "") }
             ?urn a nfo:DataContainer.
             ?item a nmm:Photo ;
                nie:isPartOf ?urn ;