Fix erroneous nil error return in FindOne. (#1926) [release/2.0] (#1944)

mongodb-drivers-pr-bot[bot] · matthewdale · web-flow · commit 80c2f1dec5b5 · 2025-02-19T13:30:07.000-08:00
Co-authored-by: Matt Dale &lt;9760375+matthewdale@users.noreply.github.com&gt;
diff --git a/mongo/collection.go b/mongo/collection.go
@@ -1549,7 +1549,7 @@ func (coll *Collection) FindOne(ctx context.Context, filter interface{},
 
 	args, err := mongoutil.NewOptions(opts...)
 	if err != nil {
-		return nil
+		return &SingleResult{err: err}
 	}
 	cursor, err := coll.find(ctx, filter, false, newFindArgsFromFindOneArgs(args))
 	return &SingleResult{

Original file line number	Diff line number	Diff line change
`@@ -1549,7 +1549,7 @@ func (coll *Collection) FindOne(ctx context.Context, filter interface{},`
`1549`	`1549`
`1550`	`1550`	`args, err := mongoutil.NewOptions(opts...)`
`1551`	`1551`	`if err != nil {`
`1552`		`- return nil`
	`1552`	`+ return &SingleResult{err: err}`
`1553`	`1553`	`}`
`1554`	`1554`	`cursor, err := coll.find(ctx, filter, false, newFindArgsFromFindOneArgs(args))`
`1555`	`1555`	`return &SingleResult{`