lib/model, lib/weakhash: Abort pulling quicker on folder stop (ref #5028)

lib/weakhash/weakhash_test.go

@@ -11,6 +11,7 @@ package weakhash
 
 import (
 	"bytes"
+	"context"
 	"io"
 	"io/ioutil"
 	"os"
@@ -36,7 +37,7 @@ func TestFinder(t *testing.T) {
 	}
 
 	hashes := []uint32{65143183, 65798547}
-	finder, err := NewFinder(f, 4, hashes)
+	finder, err := NewFinder(context.Background(), f, 4, hashes)
 	if err != nil {
 		t.Error(err)
 	}