1 files changed, 8 insertions, 1 deletions

diff --git a/bitbake/lib/bb/fetch/hg.py b/bitbake/lib/bb/fetch/hg.py
index f70611017b..ca3a084bb6 100644
--- a/bitbake/lib/bb/fetch/hg.py
+++ b/bitbake/lib/bb/fetch/hg.py
@@ -36,13 +36,20 @@ from bb.fetch import runfetchcmd
 from bb.fetch import logger
 
 class Hg(Fetch):
-    """Class to fetch a from mercurial repositories"""
+    """Class to fetch from mercurial repositories"""
     def supports(self, url, ud, d):
         """
         Check to see if a given url can be fetched with mercurial.
         """
         return ud.type in ['hg']
 
+    def forcefetch(self, url, ud, d):
+        if 'rev' in ud.parm:
+            revTag = ud.parm['rev']
+        else:
+            revTag = "tip"
+        return revTag == "tip"
+
     def localpath(self, url, ud, d):
         if not "module" in ud.parm:
             raise MissingParameterError("hg method needs a 'module' parameter")