convert: always track the hg source revision in the internal commit object

This will be needed in the next patch to determine if phases need to be
adjusted.  The insertion of the source revision in 'extras{}' is still
controlled by the config property.

hgext/convert/common.py

@@ -44,7 +44,7 b" SKIPREV = 'SKIP'"
 
 class commit(object):
     def __init__(self, author, date, desc, parents, branch=None, rev=None,
-                 extra={}, sortkey=None):
+                 extra={}, sortkey=None, saverev=True):
         self.author = author or 'unknown'
         self.date = date or '0 0'
         self.desc = desc
@@ -53,6 +53,7 b' class commit(object):'
         self.rev = rev
         self.extra = extra
         self.sortkey = sortkey
+        self.saverev = saverev
 
 class converter_source(object):
     """Conversion source interface"""

hgext/convert/hg.py

@@ -243,7 +243,7 b' class mercurial_sink(converter_sink):'
 
         if self.branchnames and commit.branch:
             extra['branch'] = commit.branch
-        if commit.rev:
+        if commit.rev and commit.saverev:
             extra['convert_revision'] = commit.rev
 
         while parents:
@@ -473,15 +473,13 b' class mercurial_source(converter_source)'
     def getcommit(self, rev):
         ctx = self.changectx(rev)
         parents = [p.hex() for p in self.parents(ctx)]
-        if self.saverev:
             crev = rev
-        else:
-            crev = None
+
         return commit(author=ctx.user(),
                       date=util.datestr(ctx.date(), '%Y-%m-%d %H:%M:%S %1%2'),
                       desc=ctx.description(), rev=crev, parents=parents,
                       branch=ctx.branch(), extra=ctx.extra(),
-                      sortkey=ctx.rev())
+                      sortkey=ctx.rev(), saverev=self.saverev)
 
     def gettags(self):
         # This will get written to .hgtags, filter non global tags out.