contrib/compress: correct ordering of copying

Changelog should always be copied last, otherwise readers can see an
inconsistent repo.

contrib/compress.py

@@ -36,7 +36,6 b' def compress(ui, repo, dest):'
         tr = target.transaction("compress")
         trp = weakref.proxy(tr)
 
-        _copyrevlog(ui, repo.changelog, target.changelog, trp, 'changesets')
         _copyrevlog(ui, repo.manifest, target.manifest, trp, 'manifest')
 
         # only keep indexes and filter "data/" prefix and ".i" suffix
@@ -48,6 +47,8 b' def compress(ui, repo, dest):'
             ui.progress(('adding files'), cnt, item=f, unit=('file'),
                         total=total)
 
+        _copyrevlog(ui, repo.changelog, target.changelog, trp, 'changesets')
+
         tr.close()
     finally:
         if tr: