Fix push multiple branches error with tests (#31151) (#31153)

Fix push multiple branches error with tests (#31151) (#31153)

Backport #31151 by @lunny

Fix #31140

The previous logic is wrong when pushing multiple branches. After first
branch updated, it will ignore left other branches sync operations.

As a workaround for the repositories, just push a new commit after the
patch applied will fix the repositories status.

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>