A real tie. The final tiebreaker is file position, so the first one we
see wins.

-- a.cue --
x: {a: 5} & {a: 5}
-- out/trim-v3 --
== a.cue
x: {a: 5} & _
-- diff/-out/trim-v3<==>+out/trim --
diff old new
--- old
+++ new
@@ -1,2 +1,2 @@
 == a.cue
-x: {a: 5} & {a: 5}
+x: {a: 5} & _
-- out/trim-v3-noshare --
== a.cue
x: {a: 5} & _
-- diff/-out/trim-v3-noshare<==>+out/trim --
diff old new
--- old
+++ new
@@ -1,2 +1,2 @@
 == a.cue
-x: {a: 5} & {a: 5}
+x: {a: 5} & _
-- out/trim --
== a.cue
x: {a: 5} & {a: 5}
