TagFile: rewind the stream before trying the next plugin

Got lost in commit c97685fe

TagFile: rewind the stream before trying the next plugin
ea9aff1d · Max Kellermann · cecae419 · ea9aff1d
Commit ea9aff1d authored Dec 29, 2013 by Max Kellermann
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TagFile.cxx src/TagFile.cxx +2 -1

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--- a/src/TagFile.cxx
+++ b/src/TagFile.cxx
@@ -67,7 +67,8 @@ public:
 					       IgnoreError());
 			if (is == nullptr)
 				return false;
-		}
+		} else
+			is->LockRewind(IgnoreError());

 		/* now try the stream_tag() method */
 		return plugin.ScanStream(*is, handler, handler_ctx);