# 
# 
# patch "tracvc/mtn/automate.py"
#  from [14c70552b4f82bff57fd19d7fc32f746a7a823a4]
#    to [6787b45e149070d179346ead8fea47a0e6186b0a]
# 
# patch "tracvc/mtn/backend.py"
#  from [8ad96c19cbb06bc36490d26daeba8a6de8bd3b01]
#    to [7c6bcf060c9299f2e09b03825658423e33c6fffd]
# 
============================================================
--- tracvc/mtn/automate.py	14c70552b4f82bff57fd19d7fc32f746a7a823a4
+++ tracvc/mtn/automate.py	6787b45e149070d179346ead8fea47a0e6186b0a
@@ -25,7 +25,6 @@ import os
 """
 
 import os
-import re
 import time
 import calendar
 try:
@@ -36,9 +35,7 @@ from cache import memoize
 import util
 from cache import memoize
 
-REVID_RULE = re.compile(r'^[0-9a-f]{40}$')
 
-
 class Automate:
     """General interface to the 'automate stdio' command."""
 
@@ -175,8 +172,6 @@ class MTN:
 
     def select(self, selector):
         """Returns a list of revisions selected by the selector."""
-        if REVID_RULE.match(selector):
-            return [selector]
         status, result = self.automate.command("select",
                             selector.encode('utf-8'))
         if status == 0:
============================================================
--- tracvc/mtn/backend.py	8ad96c19cbb06bc36490d26daeba8a6de8bd3b01
+++ tracvc/mtn/backend.py	7c6bcf060c9299f2e09b03825658423e33c6fffd
@@ -39,6 +39,7 @@ DATE_RULE = re.compile(r'\d{4}-\d{2}-\d{
 import re
 
 DATE_RULE = re.compile(r'\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}')
+REVID_RULE = re.compile(r'^[0-9a-f]{40}$')
 
 
 class MonotoneConnector(Component):
@@ -279,10 +280,15 @@ class MonotoneRepository(Repository):
         revision. It should simply be passed through.
         """
         if rev != None:
-            revs = self.mtn.select(rev)
-            if len(revs) != 1:
-                raise NoSuchChangeset(rev)
-            rev = revs[0].encode('ascii')
+            if REVID_RULE.match(rev):
+                # already a single revision id, not passed to select
+                pass
+            else:
+                revs = self.mtn.select(rev)
+                if len(revs) != 1:
+                    raise NoSuchChangeset(rev)
+                rev = revs[0]
+            rev = rev.encode('ascii')
         return rev
 
     def short_rev(self, rev):