[nautilus/recursive-link-changes] file: add comment about symlink cycle prevention

[Ernestas Kulik <ernestask src gnome org>]

commit 3883ea638b1594d8d75d6d64092de911fd06053f
Author: Ernestas Kulik <ernestask gnome org>
Date:   Tue Mar 13 20:05:53 2018 +0200

    file: add comment about symlink cycle prevention

 src/nautilus-file.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/nautilus-file.c b/src/nautilus-file.c
index 9f85a2f2c..8662d64a6 100644
--- a/src/nautilus-file.c
+++ b/src/nautilus-file.c
@@ -8537,6 +8537,7 @@ nautilus_file_emit_changed (NautilusFile *file)
         g_autolist (NautilusFile) link_targets = NULL;
         NautilusDirectory *directory;
 
+        /* Files can be links to themselves. */
         if (p->data == file)
         {
             continue;