# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 1429198366 14400
# Node ID 61a6d83280d35972ec4e2acf669b9b5032a42378
# Parent  410f3856196f3b2da3cbe784d89a69fda3a36860
tags: return empty list of heads for no .hgtags case

The caller only uses the heads to resolve tags from content of .hgtags.
Returning a non-empty array is pointless if there is no .hgtags file.

diff -r 410f3856196f -r 61a6d83280d3 mercurial/tags.py
--- a/mercurial/tags.py	Thu Apr 16 12:01:00 2015 -0400
+++ b/mercurial/tags.py	Thu Apr 16 11:32:46 2015 -0400
@@ -326,7 +326,7 @@
     if not len(repo.file('.hgtags')):
         # No tags have ever been committed, so we can avoid a
         # potentially expensive search.
-        return (repoheads, {}, valid, None, True)
+        return ([], {}, valid, None, True)
 
     starttime = time.time()