Revert "sync: skip network half on repo upgrade"

This reverts commit 61224d0.

Reason for revert: the manifest will be updated during in the
post-upgrade process, and that can result in a missing object in
LocalHalf, since NetworkHalf is not skipped.

Bug: b/392979411
Change-Id: I8a46e5b54093ed78285c8b30f000bb08a8244179
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/450181
Tested-by: Josip Sokcevic <sokcevic@chromium.org>
Commit-Queue: Josip Sokcevic <sokcevic@chromium.org>
Reviewed-by: Scott Lee <ddoman@google.com>

Author: sokcevicG

subcmds/sync.py

@@ -1834,7 +1834,7 @@ def _ExecuteHelper(self, opt, args, errors):
 
         self._fetch_times = _FetchTimes(manifest)
         self._local_sync_state = LocalSyncState(manifest)
-        if not opt.local_only and not opt.repo_upgraded:
+        if not opt.local_only:
             with multiprocessing.Manager() as manager:
                 with ssh.ProxyManager(manager) as ssh_proxy:
                     # Initialize the socket dir once in the parent.