hadoop-next in gerrit has broken push_to_asf.py

$ bin/push_to_asf.py -g gerrit-asf
INFO:root:Fetching from remote 'gerrit-asf'...
INFO:root:done
Branch 'asf-site':       up to date 
Branch 'branch-2.7.0':   found on Apache but not in gerrit 
Branch 'doc_prototype':  found on Apache but not in gerrit 
Branch 'hadoop-next':    needs update 
Cannot update branch 'hadoop-next' from gerrit:
Apache revision 75a857c0 is not an ancestor of gerrit revision 0449b5be
Something must have been committed to Apache and bypassed gerrit.
Manual intervention is required.